Glossary

Deliberately storing tea for years so it changes — a plan made before the tea is finished.

Only a minority of tea improves with keeping, and it does so because it was made to. Raw pu-erh, aged white tea and traditionally roasted oolong all age; green tea and most black tea simply fade. Ageing needs the right processing at the start — sun-drying for pu-erh, real roast for oolong — and often active maintenance afterwards, since aged oolong is re-roasted every few years.

What it is not: Not what happens to any tea left in a cupboard. A light oolong forgotten for five years is stale, not aged, and the difference was decided before it was packed.

Japanese crude tea — leaf that has been fixed, rolled and dried but not yet sorted, sized or blended.

Japanese production splits along this line: many growers process their own leaf into aracha and sell it on to refiners, who do the finishing — sizing, stem and powder separation, final firing and blending — and put a name on the result. It is why the Japanese industry is structured neither as plantations nor as bought-leaf smallholdings: the grower keeps the first manufacturing stage and sells a semi-finished product. Aracha still contains stem, leaf, powder and fragments together, and separating them is what produces sencha, kukicha and konacha from a single input.

What it is not: Not the Japanese equivalent of maocha in the sense that matters. Maocha is sun-dried and deliberately left capable of changing in storage; aracha has been finished with heat and is a stable intermediate awaiting sorting, not ageing.

Often confused with: Maocha

Repeated deliberate agitation that damages the leaf edges so oxidation begins there and nowhere else.

Withered leaf is tumbled in bamboo drums or tossed by hand, over and over, with rests between. The impacts rupture cells along the margin while leaving the centre intact, so oxidation starts at the rim and works inward under the maker’s control — a finished oolong leaf held to the light often shows a reddened border round a still-green middle. The number of shakes, their vigour and the length of the rests are the main levers an oolong maker has, and they are judged largely by smell.

What it is not: Not simply ‘partial oxidation’, as though the leaf were oxidised uniformly and stopped halfway. An oolong is a leaf oxidised heavily at the edges and barely at all in the centre, which is a different thing and explains why oolong tastes like neither green nor black tea rather than like something between them.

Pressing tea into cakes, bricks or nests — originally for transport, now for ageing.

Compressed tea travelled the tea-horse road to Tibet for centuries because a cake survives a journey a basket of loose leaf does not. The discovery that it improved on the way is the origin of the modern pu-erh market. Pressing reduces air exposure, so a cake matures more slowly and more evenly than loose leaf of the same material.

What it is not: Not a quality signal, and not always good for ageing. Small formats like dragon balls expose far more surface than a cake and age more like loose leaf, which is the opposite of what buyers assume.

Crush, tear, curl — black tea manufacture that shreds the leaf into small uniform granules.

Developed in Assam in the early 1930s by William McKercher, and the reason teabags work commercially. Granules extract fast and almost completely, giving strength and colour in three minutes, which is what a bag, chai or milk tea needs. Most tea drunk in the world is made this way.

What it is not: Not the same as a teabag. CTC is a manufacturing method and a teabag is a format; CTC is sold loose and whole leaf is sold in bags. Blaming the bag for what the leaf grade did is the most common confusion in the subject.

Often confused with: Teabag tea

Microbial change driven by living bacteria and fungi, which happens only in dark tea.

Unlike oxidation, fermentation is biological: bacteria and fungi act on the leaf over weeks, months or decades. It is the defining mechanism of dark tea, by two routes — the controlled wet pile that makes shou pu-erh in weeks, and the slow natural ageing that changes sheng pu-erh over decades. Fu Zhuan takes a third route, cultivating one named fungus until golden specks are visible throughout the brick.

What it is not: It is not what happens to black tea. TeaHQ keeps `oxidationLevel` and `postFermentation` as separate fields precisely because the two are conflated everywhere else, and a tea can genuinely be both.

Often confused with: Oxidation

Basket-dried green tea — finished in still radiant heat over a firebox rather than by contact with hot metal.

How a green tea is dried is one of the standard ways the category is subdivided in China, and the basket-dried family is a large one: Huangshan Maofeng, Taiping Houkui, Liu An Gua Pian and most of the base leaf used for jasmine scenting. Leaf sits on a mesh-topped bamboo basket set over a firebox and dries in still air, which is a gentler finish than a wok and leaves more of the leaf’s own aroma in place — a large part of why this material is chosen as a scenting base, where an assertive toasted note would fight the flower.

What it is not: Not the fixing step. Fixation has already happened by this point; hong qing describes how the tea was dried afterwards, and the same leaf fixed the same way can be finished either in a basket or in a wok to quite different effect.

Often confused with: Pan-firing

Applying heat to destroy the leaf's enzymes and halt oxidation.

The step that makes green tea green. Heat denatures the enzymes that would otherwise brown the leaf, and how the heat is applied is the biggest single variable in green tea: China pan-fires in a wok, which adds a toasted chestnut note; Japan steams, which preserves a marine and vegetal character. Oolong uses the same step to arrest oxidation part way.

Rough or unfinished tea — for pu-erh, the sun-dried loose leaf before compression.

Every pu-erh cake starts as maocha, and it is drunk loose throughout Yunnan. Tasting maocha against a cake pressed from the same material is the clearest way to understand what compression does: the loose leaf is brighter and more immediate, and it ages faster and less evenly because far more surface is exposed.

Black tea manufacture in which the leaf is twisted and rolled rather than cut.

The older of the two black-tea routes. Rolling ruptures enough cells for oxidation while leaving the leaf largely intact, so extraction is gradual and incomplete in any one steep — which is exactly what allows a garden, a flush and a leaf grade to be tasted at all. It is slower, lower-yielding and more skill-dependent than the alternative.

What it is not: Not automatically the quality tier. A poor orthodox tea is not better than a well-made CTC because of the machinery — they are tools for different jobs.

Often confused with: CTC

The enzymatic browning that happens when ruptured tea leaf meets air — the process that separates green tea from black.

When tea leaf is bruised or rolled, its cells break and enzymes inside meet oxygen. Over a few hours the leaf browns and its flavour compounds transform, which is why black tea is dark and malty and green tea is not. Every category is defined by how far this is allowed to go and how it is stopped: green tea halts it within hours by applying heat, oolong arrests it part way, black tea lets it run to completion, and white tea neither drives it forward nor stops it.

What it is not: It is not fermentation. Nothing is alive and no microorganism is involved — it is a chemical reaction driven by the leaf's own enzymes. Black tea is described as fermented constantly, including by producers, and it is wrong.

Often confused with: Fermentation

Fixing tea by tumbling it in a heated wok, the Chinese method of stopping oxidation.

Direct contact with hot metal both halts oxidation and adds flavour, which is where Longjing's toasted chestnut note comes from. For Longjing the leaf is also pressed flat against the wok wall in the same operation, so shaping and fixing happen together — among the most skill-dependent steps in Chinese tea.

What it is not: Not roasting. Pan-firing is a fixing step performed on fresh leaf within hours of picking; roasting is applied to finished tea, often months later.

Often confused with: Roasting

Applying heat to finished tea to develop flavour, most importantly in oolong.

A second dial, independent of oxidation, and the reason two oolongs from the same cultivar can taste nothing alike. Traditional charcoal roasting runs in several sessions over months with weeks of rest between, which lets the character migrate inward and integrate; a single long roast at the same total energy tastes harsh and superficial.

What it is not: Not visible in the dry leaf as reliably as people assume. Roast level shows in the cup and in how long a tea needs to rest, not in how dark the leaf looks.

Working withered leaf under pressure so it twists into shape and its cells rupture enough for what comes next.

Rolling does two jobs at once, which is why it is the step where a maker’s intentions become physically fixed. It shapes — into twists, needles, pellets or strips — and it ruptures, releasing the cell contents that oxidation or a later fermentation acts on. How hard and how long decides how completely a finished tea gives itself up in the pot: a lightly rolled leaf releases slowly across many infusions, a hard-rolled one releases fast.

What it is not: Not the same operation as bruising. Rolling works the whole leaf under pressure; bruising damages only the margins by repeated agitation, and confusing the two makes oolong manufacture unintelligible.

Often confused with: Bruising

A screw press with internal vanes that macerates withered leaf continuously — a separate machine from CTC, and usually the one feeding it.

A horizontal barrel with a rotating shaft and fixed vanes, working like a mincer: leaf is augered forward against resistance and worked over as it travels. Its advance over the orthodox roller was that it ran continuously rather than in batches, and it became the standard feed for CTC lines, which need leaf already broken down before the toothed rollers see it. It is also used alone, giving a hard, small, well-macerated leaf that is neither a twist nor a granule, and as a partial pre-treatment ahead of orthodox rolling to raise yield.

What it is not: Not the same machine as CTC, though the two are used as one word. Naming them separately matters because a tea made on a Rotorvane alone — common in parts of Africa and in Indian factories running mixed lines — is not a CTC tea and neither looks nor brews like one.

Often confused with: CTC

Grinding tencha into matcha between slow-turning granite wheels.

A granite mill turns at around thirty revolutions a minute and produces roughly forty grams of powder an hour, which is the main reason good matcha is expensive. The slow speed keeps the leaf cool; friction heat degrades aroma and dulls the colour, which is why faster industrial milling produces a visibly khaki rather than jade powder from identical leaf.

Drying leaf in sunlight at low temperature, leaving it capable of changing in storage.

The step that makes pu-erh possible. Machine drying takes leaf to a temperature that finishes it — enzymes denatured, surface microorganisms killed, chemically stable. Sun-drying does neither completely, so the leaf keeps the capacity that decades of storage act on. A cake made from machine-finished maocha will not age the way a sun-dried one does, whatever the wrapper says.

What it is not: Not a romantic or merely traditional detail. It is functional, and it is invisible to a buyer — which is why sellers who state their drying method are worth preferring.

Shaded leaf that has been steamed, dried and de-stemmed but never rolled — matcha before milling.

Tencha is the input to matcha. Because it is never rolled, its cell structure stays intact and it mills cleanly into a fine powder. It can be steeped as a delicate green tea and rarely is outside Japan.

What it is not: Not a cheaper substitute for matcha. Grinding it at home rarely works, because domestic grinders generate heat that slow granite mills avoid, and heat dulls both colour and aroma.

The controlled microbial fermentation that turns raw pu-erh into ripe pu-erh in weeks.

Developed at the Kunming and Menghai factories in the early 1970s to imitate decades of natural ageing. Damp leaf is piled under controlled heat and humidity for several weeks while a mixed microbial population transforms it. Ripe pu-erh is therefore younger than most people drinking it.

What it is not: Not an ancient technique, and any 'traditional recipe' claim about shou pu-erh is false by construction — the process is barely fifty years old.

Lifting light material — fibre, leaf hair, loose dust — out of finished tea with a stream of air.

Everything leaving the drier is a mixture, and sorting separates it by size on stacked vibrating screens, by density in a winnower, by magnetic response in a stemmer and increasingly by colour under an optical sorter. Winnowing is the density stage, and it is why a well-finished tea does not fill the packet with powder. Sorting therefore cleans as well as sizes, and part of what distinguishes a well-made tea from a poor one is material that was taken out rather than anything that was put in.

Holding freshly plucked leaf until it loses water and goes limp — the first decision in almost every category.

A hard wither takes the leaf a long way down in moisture, is standard ahead of CTC and orthodox rotorvane lines, and gives leaf that macerates cleanly. A light wither leaves the leaf much wetter and is characteristic of Darjeeling first flush and of many Chinese black teas, where the intention is to keep the green, floral character that a longer wither would carry away. The choice is made before any other and constrains everything after it.

What it is not: Not simply drying the leaf out. Moisture loss is half of it: the hours the leaf spends limp and intact are when a large part of its aromatic character is built, which is why a wither that is merely fast gives a duller tea than a slow one reaching the same moisture.

A long shallow bed with a perforated floor and fans, which turns a weather-dependent step into a scheduled one.

Leaf is loaded to a set depth and conditioned air is driven up through it, so every part of the bed sees roughly the same airflow instead of the top layer drying while the bottom stays damp. Because the air can be warmed in wet weather and left ambient in dry, the operation runs to a timetable — which is what lets a factory plan an oxidation start time and a shift pattern around it. It is the least romantic step in black tea manufacture and among the most consequential, since a bed withered unevenly cannot be made even again at any later stage.

What it is not: Not a drying machine, and not interchangeable with heat. Dehumidified air removes moisture without raising leaf temperature and is increasingly used in high-value orthodox production precisely because heavily heated air shortens the wither and is associated with a flatter result.

Smothering fixed green leaf under cover so it changes slowly to a yellow-olive colour — the step that defines yellow tea.

Men huang is one named step with two quite different executions, and which one is used is most of why the yellow teas do not taste like variations on one thing. Wet-blank yellowing wraps the leaf while it is still warm and holding most of its moisture, so change is fast, strong and easy to overshoot. Dry-blank yellowing part-dries the leaf first, then wraps and holds it, sometimes for days and sometimes over repeated cycles with a light bake between each; change is slower and much easier to steer. Both are labour in a category already struggling to justify its cost, and both are what a producer quietly drops when yellow tea has to compete with green on price.

What it is not: Not a mild form of the wet-piling that makes shou pu-erh, despite the resemblance of damp piled leaf under cover. Yellowing acts on leaf whose enzymes were already destroyed at fixation, involves no cultivated microbial population, and runs for hours or days rather than weeks.

Often confused with: Wet-piling

The drying, mouth-puckering sensation from polyphenols binding to proteins in saliva.

Astringency is a tactile sensation rather than a taste — it is what makes the mouth feel dry and slightly rough, the same effect an unripe persimmon or a tannic red wine produces. It comes from polyphenols binding proteins in saliva, and it is raised by leaf grade, agitation and long steeping.

What it is not: It is not bitterness, and conflating them makes troubleshooting advice actively wrong. Bitterness is a taste from over-extraction and heat; astringency is a texture from polyphenols. They have different causes and different fixes, which is why TeaHQ scores them on separate axes.

Often confused with: Bitterness

A taste, detected on the tongue — not the drying texture it is habitually confused with.

Bitterness is one of the basic tastes and arrives from over-extraction, from heat and from the leaf’s own composition. It is separable from astringency by a simple test: bitterness is something tasted and fades, astringency is something felt and builds across a mouthful. They have different causes and different remedies, so a cup that is too bitter and a cup that is too drying are two different problems with two different fixes.

What it is not: Not automatically a fault. Young sheng pu-erh from Bulang is aggressively bitter by design and drunk for the returning sweetness that follows; matcha’s bitterness is structural; Dan Cong is brewed deliberately against the edge of it because that is where its aroma sits. ‘Remove all bitterness’ is not a universal goal.

Often confused with: Astringency

The impression of substance and weight a liquor has in the mouth, independent of how strong it tastes.

Body sits in mouthfeel rather than in taste or aroma, and it has several contributors that are worth keeping apart: dissolved material, fine suspended material that filtering removes, and aroma, since a liquor with strong retronasal presence is consistently judged fuller than a comparable one without. That last is a perceptual effect rather than a physical one and is no less real for it. Chinese tasting vocabulary regards thickness as a primary evaluative term and distinguishes smoothness from it.

What it is not: Not strength, and not the opposite of astringency — astringency is the removal of lubrication and body is the impression of substance, and a tea can have plenty of one and none of the other. Most complaints that a tea is thin turn out on inspection to be complaints about something else.

Often confused with: Strength

A trade tasting term for a lively, clean edge in a black tea liquor — associated with theaflavins rather than with strength.

Briskness is the quality a professional taster is looking for in a well-made black tea: a liquor that feels alert on the palate rather than heavy. Oxidation converts catechins into theaflavins, a small group of orange-red compounds, and then into thearubigins, a much larger, browner and chemically heterogeneous group. What is well established is the direction — more thearubigins means darker, deeper and less brisk — and that is what this catalogue asserts. The word belongs to the auction room and travels poorly outside it.

What it is not: Not strength and not astringency. A tea can be strong and dull, and a brisk tea is not necessarily a drying one — briskness describes liveliness and cleanness of edge, which is why a Rotorvane-macerated liquor is described as brisk while being nothing like a fine Darjeeling.

Often confused with: Strength

The returning sweetness that arrives seconds after swallowing, especially in pu-erh.

Literally 'returning sweetness'. Bitterness arrives first and then recedes, and a sweetness rises in its place after a few seconds. It is the property young sheng pu-erh is judged on, and the reason a genuinely bitter tea like Lao Ban Zhang commands the price it does — the bitterness is the entry fee for what follows.

What it is not: Not an aftertaste in the ordinary sense, which is simply flavour persisting. Hui gan is a change of sensation over time, and a tea can have a long aftertaste and no hui gan at all.

Smell arriving at the nose from inside the mouth rather than through the nostrils — and the source of most of what people call taste.

The same volatile compounds reach the olfactory receptors by two routes, and the brain attributes the ones arriving from the mouth to the mouth, which is why they are experienced as taste. That is the mechanical reason a tea tasted with the nose pinched has almost nothing beyond bitterness and astringency, and why a cold leaves tea tasting of very little: the tongue is working normally and the larger channel is shut. Two practical consequences follow — breathing out gently through the nose after swallowing substantially increases what is perceived, and professional slurping aerates the liquid to release volatiles into the mouth’s air space.

What it is not: Not the same sample as smelling the dry leaf or the empty cup. Those are orthonasal impressions of the same compound set, and each route shows a different part of it, which is why a description separating aroma from taste is more useful than one that merges them.

Often confused with: Taste

A word used loosely for tea polyphenols, and used precisely it does not describe most of what tea contains.

In wine and oak, tannins are a specific class of large polyphenols. Tea's astringency comes mostly from catechins, which are smaller and chemically distinct, and true condensed tannins are a minor component. The word survives in tea writing because it describes the sensation people recognise.

What it is not: Not a precise description of tea chemistry, and not a synonym for astringency — one is a compound class, the other a sensation. TeaHQ prefers the sensory term because it is the one that can be tasted and checked.

Often confused with: Catechins

Savouriness — the broth-like taste from amino acids, above all L-theanine.

The fifth basic taste, and the defining quality of shaded Japanese green tea. Shading raises amino acid content and suppresses catechins, which is why gyokuro and high-grade matcha taste sweet and savoury rather than astringent. Brewing temperature decides whether you get it: amino acids extract readily in cool water and catechins need heat, which is why gyokuro is brewed at 50–60 °C.

What it is not: Not a synonym for 'good'. It is one register among several, and plenty of excellent tea has none of it — a Wuyi rock tea is not deficient for tasting mineral rather than savoury.

A Chinese evaluative term, usually translated as rhyme or resonance, for a persistent character a tea leaves behind that is attributed to its place.

It is most often met attached to a region: yan yun, rock rhyme, for zheng yan Wuyi tea, and comparable usages elsewhere. What practitioners describe with it is a lingering, coherent quality in the throat and aftertaste that they hear as belonging to an origin rather than to a processing decision. TeaHQ reports that the term is used and what it is used to describe, and notes the difficulty: the growing habit, the age of the plants and a long local processing tradition all travel with the geology, so nothing here is isolated from anything else.

What it is not: Not a measurable property and not a grading criterion. It is also not an aftertaste in the plain sense, which is simply flavour persisting — yun is a claim about where a character came from, and it is exactly the claim that cannot be checked from the cup.

Often confused with: Aftertaste

Growing tea deliberately under and among trees rather than as an open stand.

Tree cover here is a designed part of the field rather than a remnant of what stood before. Nitrogen-fixing species supply nitrogen through litter fall in the same field where it is used, and shaded tea holds considerably more biodiversity than unshaded tea. It also changes the arithmetic of any carbon claim: shade trees are usually the largest above-ground pool in a tea landscape by a wide margin, so whether they are counted can move a figure by a large factor — which is why a number quoted without stating what was counted is not interpretable.

What it is not: Not the same thing as the shading used for gyokuro and matcha. That is a temporary covering raised over the bushes for weeks before picking in order to change leaf chemistry; agroforestry shade is permanent standing tree cover and is not there to change the leaf.

Often confused with: Shade-grown tea

Grown from cuttings of a single parent plant rather than from seed.

Clonal planting gives genetic uniformity and therefore consistency batch to batch, which is why most modern estates use it. Seed-grown gardens produce a mixed population where no two plants are quite alike, which costs consistency and can add complexity. Darjeeling's shift to clonal AV2 is the main reason its first flush tastes different now from thirty years ago.

What it is not: Not a quality signal in either direction. Clonal is more consistent; seed-grown is more variable, which is a fault in a commodity tea and sometimes a virtue in a speciality one.

Cutting a bush back almost to ground level and asking it to rebuild an entire new frame from the base.

The bottom of the pruning ladder, reached when a field has aged past what ordinary pruning can correct — a congested frame full of dead wood, low yield, a patchy stand. It takes two or three years to come back into bearing and does not always succeed: weak or diseased plants die instead of regenerating. It is much cheaper than replanting, which is the comparison that decides it, and estates plan the whole ladder as a rotation so only a fraction of the planted area is out of production at once.

What it is not: Not routine maintenance. Each step down the ladder buys a longer recovery and a bigger subsequent response, and the bottom step is a decision about the future of a field.

A named, deliberately propagated variety of the tea plant, selected and reproduced from cuttings rather than grown from seed.

All tea is Camellia sinensis, but the plant has been selectively bred for centuries into named cultivars with distinct characteristics. Yabukita dominates Japanese production; Qing Xin makes Taiwanese high-mountain oolong; Bai Ye Yi Hao is an albino mutant behind Anji Bai Cha. Because a cultivar is propagated from cuttings, every plant is genetically identical to the parent — which is what makes the character reproducible.

What it is not: Not the same as a botanical variety. `var. sinensis` and `var. assamica` are varieties — a level above cultivar — and most named cultivars sit inside one of them.

Often confused with: Variety

The season's earliest picking, when amino acid content is highest and the leaf is most tender.

Winter dormancy concentrates amino acids in the plant, so the first shoots of spring are the sweetest and least astringent of the year. Japan sells this as shincha, China as pre-Qingming tea picked before early April. Both command large premiums and both are genuinely perishable — the character is what fades first.

What it is not: Not simply 'fresh'. Any tea can be fresh; first harvest is a specific point in the growing year, and the premium is for the plant's condition rather than for how recently it was packed.

Often confused with: Fresh tea

A harvest — one round of new growth picked from the bush.

Tea plants push out new shoots several times a season, and each round is a flush. In Darjeeling the first flush is picked in March and the second in May, and they produce teas so different that treating them as one product is misleading. The word carries most weight where seasons are pronounced; in equatorial Kenya, where there is no dormant winter, it means much less.

What it is not: Not a quality ranking. First flush is not better than second — they are different teas, and the second flush is the rounder and more forgiving of the two.

Often confused with: Grade

Old-growth pu-erh material taken from tall unpruned trees rather than from plantation bushes.

The distinction it names is real: old trees in mixed stands, grown from seed and never cut to a plucking table, give a different material from dense clonal plantation. What does not exist is any registration, agreed age threshold or test that settles a claim, and the quantity sold under the label vastly exceeds any plausible supply. The word is therefore best read as a description of what a seller is asserting rather than of what is in the packet.

What it is not: Not the same as wild. ‘Wild’ has no definition in tea and usually means uncultivated or unmanaged, which is sometimes a virtue and sometimes a description of neglect.

Often confused with: Wild tea

A Taiwanese oolong category defined by growing elevation, in which named mountains function as elevation claims.

Cold nights and slow growth at altitude are associated with thicker texture and a longer finish, and the Taiwanese market grades on it explicitly, with Da Yu Ling at the top of the ladder. Sri Lanka runs a parallel system in low-, mid- and high-grown, and there the grading is descriptive of style rather than of merit: low-grown Ruhuna is not a failed attempt at Nuwara Eliya, and the two go to almost entirely separate markets.

What it is not: Not a verified figure. Elevation on a packet is voluntary and unchecked — usually broadly accurate, and more common in Sri Lanka and Taiwan where elevation is a recognised trade category, but nothing audits it.

Managing pests by monitoring populations and combining several controls, with chemical application as one option rather than the default.

In tea it combines monitoring, so that an application happens when a population justifies it rather than on a calendar; cultural control, including pruning and skiffing timed to break pest cycles, removal of infested material and weed management that denies alternative hosts; resistant or tolerant cultivars where any exist for the local problem; and biological control, including predatory mites and parasitoids. It is information-intensive rather than input-intensive, which is why it is harder to adopt than it sounds.

What it is not: Not a synonym for pesticide-free, and not the same as organic certification. IPM permits chemical control and sets out to make it the last step rather than the first.

Often confused with: Organic production

Leaf deliberately left to be fed on by a small sap-sucking insect, whose damage the plant answers with aroma compounds the maker wants.

Feeding stops the shoot growing normally and the plant responds by producing volatile compounds, which is where the honeyed character of Oriental Beauty and of certain Taiwanese and Darjeeling lots comes from. It inverts the ordinary relationship between a pest and a crop: the field cannot be sprayed, yield falls, and the damaged leaf is the product. That is a large part of why these teas are expensive and why the harvest cannot be planned — the insects have to arrive.

What it is not: Not a processing step and not a cultivar trait, though both travel with it. It is an event in the field, and a season without the insects produces a different tea from the same bushes.

A named Wuyi bush — a plant selection famous enough to be sold under its own name rather than as rock tea generally.

The Wuyi tradition names individual selections, and the best known of them — Bai Ji Guan, Tie Luo Han, Shui Jin Gui, Ban Tian Yao — are recognisable in the field as well as in the cup. Bai Ji Guan pushes pale yellow-green shoots and is roasted far more lightly than most yancha because a heavy fire would obliterate its delicacy; Tie Luo Han is dark, dense and mineral and takes a strong roast. The name therefore predicts both the plant and the roasting decision a maker will take with it.

What it is not: Not a grade, and not an assurance that the plants are old. The material behind a named selection is now largely propagated from cuttings like any other cultivar, and the name has become a cultivar name in practice whatever its origins as a description of particular bushes.

Often confused with: Cultivar

A field planted to one crop — for tea, a dense evergreen shrub stand that replaced whatever grew there before.

Tea plantations hold fewer species than the vegetation they replaced in every group that has been surveyed, which is unsurprising and is not a criticism of tea specifically: it is what any dense stand of a single evergreen shrub looks like ecologically. The verdict then depends entirely on the baseline chosen, and the baseline is chosen far more often than it is argued for. Against the forest that stood there, tea is an enormous loss; against the maize, settlement or oil palm that might otherwise occupy the slope, it is a modest gain.

What it is not: Not the live issue in most established tea regions. There the question is not deforestation but what an old monoculture does year after year to soil, water and biodiversity, and whether the same land could hold more if managed differently.

The specification for what a picker takes — most often a bud and two leaves — and the largest single determinant of what the factory has to work with.

A fine standard takes less material of higher quality and costs far more labour per kilogram; a coarse one takes more and brings older leaf and stem with it. It is a decision about cost and product made in the field before any processing choice exists, and no later step recovers what a coarse pluck lost. Mechanical harvesting cannot hold a standard in the same sense: a machine takes everything at the height it is set to, which is why machine-harvested leaf is sorted afterwards rather than selected first.

What it is not: Not a grade. A plucking standard describes what left the bush; a grade describes what came off the sorting screens, and a fine pluck badly made still grades poorly.

Often confused with: Grade

The continuous harvesting surface formed where the canopies of many bushes have grown together — a plane rather than a set of plants.

A picker working a row is not harvesting individual bushes but whichever branches reach the surface, and in an established field neighbouring canopies have closed completely. The table rises a little with every round, because each shoot is taken above a leaf that then stays, so pruning is also how its height is controlled. Left uncorrected for long enough, a field becomes literally too tall to harvest from the ground.

What it is not: Not a figure of speech, and its consequences are physical. A bush planted five years after its neighbours never reaches the table and is cut every round without being properly harvested, which is what the patchy sunken places in an old canopy are recording.

A seed-grown population rather than a named clone — the Chinese term for what any crop would call a landrace.

These are the descendants of generations of planting from locally collected seed, so they are adapted to their place and varied within it. No two plants flush at quite the same time, none ruptures identically under the same roller, and a fixation drum set for one part of the material slightly under- or over-fixes the rest — so a maker working a population is continuously compensating and results vary more batch to batch. That is the honest cost side, and it is why the industrial answer was clonal planting. Several Chinese areas make the same tea from qun ti zhong and from a named clone in the same season, with the same maker and equipment; tasted side by side, the clonal version is typically more consistent and the population version more layered.

What it is not: Not the same as heritage or traditional, which are marketing words. Landrace names a population structure and says something checkable. Nor is it automatically a premium: the material persists both where buyers pay for it and where nobody has had the capital to replant.

Often confused with: Wild tea

A tree grown permanently within a tea field for nitrogen, shelter and shade, rather than for any effect on a single harvest.

Where shade trees are present they are usually the largest above-ground carbon pool in the field by a wide margin, which is why shaded and unshaded systems account so differently. Nitrogen-fixing species supply nitrogen through litter fall where it is needed, which matters because fertiliser is usually the largest cash input a tea grower buys. Shade tree lines are also part of the non-tea fraction of an estate — along with ravines, streams, fuelwood plantations and unplantable ground — that does a large share of whatever ecological work the landscape does.

What it is not: Not the covering used for gyokuro and matcha, which is a temporary structure over the bushes for a few weeks and has nothing to do with permanent tree cover.

Covering tea plants for weeks before harvest to change the leaf's chemistry.

Reducing sunlight for two to four weeks before picking makes the plant produce more chlorophyll and more amino acids while suppressing catechins. The result is darker, sweeter and more savoury leaf with less astringency. It is the single variable behind gyokuro, kabusecha and matcha alike, and it is expensive because it costs yield.

A light cut across the top of the plucking table that levels it without going into the bush’s frame.

Skiffing sits at the top of the pruning ladder: it takes off accumulated top growth and resets the harvesting plane, and the bush returns to picking quickly because its frame was never touched. Below it come light and medium prunes cutting back into older wood, then a heavy prune down close to the main frame, and at the bottom collar pruning. Skiffing is also used as a cultural control in pest management, timed to break a pest cycle rather than to correct the canopy.

What it is not: Not a prune in the sense that matters agronomically. A prune costs a season or more of yield and buys years of renewed vigour; a skiff costs little and buys little, and using one where the other is needed is how a field is allowed to decline.

The claim that a place — its soil, altitude, climate and aspect — leaves a detectable signature in the cup.

Borrowed from wine, and better supported in some tea categories than others. Wuyi rock tea's mineral character is attributed to weathered cliff soil; Taiwanese high-mountain oolong's thickness and long finish are attributed to altitude and cold nights. Both are widely accepted and neither is easy to isolate from cultivar and processing, which travel with the place.

What it is not: Not an assurance of quality, and not a substitute for processing. A famous origin badly made is worse than an ordinary origin made well, and the most expensive designations — zheng yan, Lao Ban Zhang — are also the most counterfeited precisely because the claim is unverifiable in the cup.

A term used by drinkers for the bodily sensation some teas produce beyond flavour — warmth, alertness, a settled feeling.

Cha qi is discussed most in pu-erh and aged oolong circles, where it describes an effect drinkers report as distinct from taste. TeaHQ records that the term is used and what it is used to describe, and takes no position on what causes it. That is deliberate: any physiological explanation would be a health claim, and this catalogue holds those in a layer that has not been reviewed.

What it is not: Not a measurable property, not a grading criterion, and not something TeaHQ makes any claim about. Where a seller prices a tea on cha qi, they are pricing a subjective report.

Steeping leaf in cold water for hours, which extracts a different set of compounds rather than the same set more slowly.

Temperature does not only change the rate of extraction, it changes what is extracted. Amino acids come out readily in cool water while catechins need heat, so a cold steep from leaf that would give a brisk, drying cup hot instead gives a comparatively sweet one with little astringency. It is a different drink from the same material rather than a weaker version of the hot one.

What it is not: Not iced tea. Iced tea is brewed hot and then chilled or poured over ice, which extracts as usual and then dilutes; cold brew never sees heat, and the two do not taste alike.

Often confused with: Iced tea

A family of preparations in which one strong steep is made and each serving is diluted to taste at the point of pouring.

The samovar, the çaydanlık and several Central Asian and Levantine services all work this way, and functionally so does a thermos of hot water beside a small pot of strong tea. It has three properties a single-strength pot does not: strength chosen per drinker, an indefinite service window without the leaf steeping on in anyone’s drink, and low fuel cost, because one body of water is held hot rather than repeatedly reboiled.

What it is not: Not a compromise or a catering shortcut. Where it is traditional it is the design, and the adjustment made at the glass is the point of the arrangement rather than a concession to it.

Often confused with: Western brewing

Simmering or boiling the leaf in the liquid, rather than steeping it in water taken off the heat.

Infusion pours hot water onto leaf and lets it stand; decoction keeps the mixture on the heat. Sustained heat extracts material a steep leaves behind, which is why boiled preparations can use coarse leaf, stem and compressed dark tea that would give almost nothing to a three-minute steep, and why they tolerate milk and spice carried in the same pot. Masala chai, Tibetan and Mongolian milk teas, Kashmiri noon chai and boiled dark tea all sit on the decoction side.

What it is not: Not the same as brewing for a long time. Time and temperature are separate variables, and a twenty-minute steep off the heat is not a decoction and does not taste like one.

Often confused with: Infusion

A brewing approach using a lot of leaf in a small vessel for very short, repeated infusions.

Gongfu means skill acquired through effort, and as a brewing method it means roughly 5–7 g per 100 ml with first steeps under fifteen seconds, repeated six to fifteen times. The point is the arc: the tea changes across the session, and each infusion is different. It suits teas with something to reveal over time — oolong, pu-erh, high-grade Chinese leaf — and adds nothing to a breakfast blend.

What it is not: Not a superior method, and not a scaled version of western brewing. 5 g for 20 seconds and 3 g for 3 minutes are different extractions, not different sizes of the same one, and parameters never transfer between them.

Leaf loose in a tall glass or mug, topped up with hot water as it empties and never strained.

The leaf stays in the vessel throughout, sinks once it is wet, and the drink is sipped from above it. It works because the ratio is low and the water is repeatedly refreshed, so the tea never reaches the strength a short steep at a high ratio would give. It suits what it is traditionally used for — mild greens with leaf large enough to settle.

What it is not: Not laziness and not a degraded gongfu. It is an equilibrium rather than a steep: nothing is removed and nothing is timed, and it fails for exactly the teas you would expect — anything fine-particled, anything strongly astringent, anything whose interest is in changing across infusions.

Matcha prepared thick enough to pour like paint rather than to whisk into foam.

It is not a stronger version of everyday matcha but a separate preparation with its own motion, its own grade of powder and, in chanoyu, its own place in the sequence — and it is the older of the two. The whisk kneads rather than aerates and the result is not foamed. Usucha, thin tea, is what almost everyone outside Japan means when they say matcha.

What it is not: Not simply more powder in the same bowl. The powder is different, the motion is different and the outcome is a different drink, which is why a matcha that makes good usucha may be the wrong choice for koicha.

Often confused with: Usucha

Ice placed directly on the leaf and left to melt, so the tea is extracted by meltwater at close to freezing.

The extreme end of the cold-extraction argument. At that temperature very little beyond the amino acid fraction comes out, and the result is a small quantity of intensely sweet and savoury liquor with almost no astringency. It is used for high-grade shaded green tea, where that fraction is what the tea was grown for, and it has nothing to offer a tea without one.

What it is not: Not a slower cold brew. Cold brew uses cold water and hours and makes a drink; this uses melting ice and makes a few millilitres, and it is a demonstration of one fraction of the leaf rather than a way of quenching a thirst.

Often confused with: Cold brew

A brief first steep poured away rather than drunk — standard for compressed and tightly rolled tea and pointless for most others.

A rinse wakes compressed leaf and carries off the dust of storage, which is a real job for a cake that has been handled and kept for years. It lasts a few seconds and is discarded immediately, because a long rinse simply extracts the tea. Compressed dark tea, aged oolong and tightly rolled oolong all gain from it. Sencha does not — there is no compression and no long storage, and rinsing it throws away the best infusion.

What it is not: Not a way of removing agricultural residues, which is the reason usually given and does not hold up: a few seconds of hot water would not achieve it. The genuine reasons are mechanical, and they apply to some formats and not to others.

Often confused with: Washing the leaf

One steep of a small amount of leaf in a large volume, for several minutes.

Roughly 1–1.5 g per 100 ml for two to four minutes, giving one cup. It shows a tea's overall character as a single average, which suits everyday drinking, blends, and anything drunk with milk. It is not a degraded form of gongfu — for a breakfast blend it is simply the right tool.

The strong tea concentrate at the centre of samovar service, diluted with hot water in each glass.

The pot holds a concentrate rather than a drink, and each glass is filled with a measure of it and topped up from the urn. Russian usage names the concentrate zavarka. Iranian practice warms the pot on the samovar to steep — dam — and sugar is typically taken alongside the glass rather than stirred into it, with the colour of a poured glass openly assessed. The apparatus is shared across a wide band of countries and the practice around it is not one thing.

What it is not: Not over-brewed tea and not a shortcut. It is a different structure of preparation from a single pot poured out at one strength, and judging it as though it were the latter misreads it entirely.

A tall narrow cup used alongside the drinking cup in Taiwanese practice: poured into, emptied, and then smelled.

Tea goes into the aroma cup first, the drinking cup is inverted over it, the pair is turned so the liquor transfers, and the empty aroma cup is smelled while still warm. Residual heat on the wet interior releases aromatics the liquid itself does not give up, and the tall narrow shape concentrates them. It is closely associated with high-mountain oolong, where aroma is the point of the tea.

What it is not: Not a second serving cup and not ornament. The shape is the function, which is why no substitute really works — a warmed empty drinking cup gives part of the effect and not much of it.

Two kettles that nest: a larger one below that boils water on the hob, and a smaller one above that holds the leaf.

The upper pot — the demlik — never touches the flame and is held at steeping heat by the steam and the hot metal beneath it. The service model it inherits from samovar practice is the same: strong tea above, hot water below, and the strength of each glass decided at the moment it is poured. It is standard in domestic kitchens and tea houses in Turkey and Northern Cyprus.

What it is not: Not a samovar, and not a double boiler for keeping tea warm. The leaf is held hot without being boiled and the water is kept separate until the glass is poured — a small teapot set over a pan of simmering water reproduces the arrangement exactly.

Often confused with: Samovar

A shallow curved dish that dry leaf is poured into to be looked at and smelled before it goes into the brewing vessel.

It exists because the dry leaf is the part of a session most easily skipped and the part that tells you most about what is coming — breakage, uniformity, tip content, whether the tea has been sitting. Passing it round for guests to smell is a normal part of a gongfu session, and warming a porcelain dish briefly before the leaf goes in lifts the dry aroma noticeably.

What it is not: Not a container and not really a measure, though it is often used as one. It handles dry leaf only: a damp cha he dulls the aroma it exists to present.

A whisk carved from a single piece of bamboo into as many as a hundred and twenty fine tines.

Nothing else suspends matcha as well. The tines are flexible enough to break up clumps without scraping the bowl and numerous enough to aerate the liquid into a fine foam. A small electric frother gives a usable suspension and a coarser foam; a metal whisk works badly and will mark the bowl.

What it is not: Not a mixing tool in the ordinary sense. Matcha is a suspension rather than a solution, so the job is keeping solid particles dispersed rather than dissolving anything — which is what the tine count is for.

A small jug the whole infusion is poured into before it is shared out, so that every cup is the same.

The purpose is in the Chinese name, gong dao bei — fairness cup. Liquor leaving a vessel is weaker at the start of a pour than at the end, so filling cups directly from a gaiwan gives the first drinker a different tea from the last. Decanting also stops the leaf steeping on in the vessel, which is the second and less discussed reason it is standard in gongfu practice. The glass version is popular because it lets the colour of the liquor be judged.

What it is not: Not a serving flourish and not a teapot. For one drinker it is optional — pouring back and forth between cups evens the strength out less elegantly — and for several it solves a real problem.

A lidded bowl with a saucer, used as a brewing vessel throughout China.

Three pieces — bowl, lid and saucer — used together as a small teapot: the lid holds the leaf back while the tea is poured off. Typically 100–150 ml, porcelain and non-porous, which means it absorbs nothing and tells the truth about whatever is brewed in it. It is the cheapest serious tea vessel there is and the sensible first purchase.

What it is not: Not a lesser version of a clay pot. A yixing pot absorbs oils and must be kept to one category of tea; a gaiwan can brew anything, which makes it the more useful vessel while you are still finding out what you like.

Often confused with: Yixing teapot

A small handleless lidded pot with an integral filter, used for shaded Japanese green tea.

The absent handle is not a stylistic choice. This vessel is used at water temperatures low enough that the body never becomes too hot to hold, so a handle would advertise a heat the method is designed to avoid. Its natural companions are gyokuro and kabusecha, where water goes onto the leaf far below boiling.

What it is not: Not a small kyusu. A kyusu has a handle because it is used at temperatures where one is needed, and choosing a houhin for a tea brewed hot is choosing to burn your fingers.

Often confused with: Kyusu

The Japanese teapot, most often with a handle at right angles to the spout rather than opposite it.

Its distinguishing feature is not the handle but a wide built-in filter, usually a fine ceramic mesh across the whole spout wall. That is what lets deep-steamed sencha’s fine particles be poured off without clogging, and it is why a basket infuser fails with fukamushi where a kyusu does not — the basket blocks and the tea under-extracts.

What it is not: Not defined by a side handle. Handles sit at the side, at the back or over the top depending on the maker and the intended use; the filter is the feature that matters.

Often confused with: Houhin

A small lidded caddy, classically lacquered wood, holding sieved matcha for a single occasion.

It is a working container rather than storage. Matcha dulls quickly once it meets air, so the natsume holds what is about to be used while the tin the powder came in, kept sealed and cold, remains the right place for the rest. Within chanoyu the choice of caddy carries seasonal and formal meaning; TeaHQ describes the object rather than speaking for the practice around it.

What it is not: Not a storage caddy, and using one as such is among the commonest ways an expensive matcha is spoiled before it is drunk.

A metal frame with a handle that a glass of tea sits inside.

It solves the problem the glass creates: the glass is hot, thin and has no handle. Long associated with Russian rail travel, where a weighted base also made a glass considerably harder to knock over on a moving train, and still standard on long-distance services. Comparable holders exist elsewhere in the samovar band.

What it is not: Not a brewing object. It is a holder of considerable charm and no consequence whatever for what is in the glass.

A large water urn with an internal flue and a tap, with a small teapot resting on the crown.

The flue is the design: heat rises through the middle of the water rather than being applied beneath it, so a large volume stays near boiling for hours at low fuel cost while the pot above is warmed indirectly. Russian in origin, with Tula the historic centre of manufacture, and adopted into Iranian, Azerbaijani, Turkish and Central Asian practice — each of which developed its own service around it.

What it is not: Not a device that brews tea. It heats and holds water; the tea is a concentrate made in the small pot above and diluted in the glass. Treating everything done with a samovar as one custom because the apparatus is shared is the same error as describing every teapot country as having a single tea culture.

Often confused with: Teapot

A wide shallow handleless brewing dish whose filter is a moulded ridge or gap rather than a mesh.

The name describes the action — the liquor is squeezed out through that gap — and the shape describes the intent. Broad and flat means water poured in loses heat immediately, which is exactly what the highest grades of shaded green tea want, and it is also used for ice steeping.

What it is not: Not a houhin with a different lid. The houhin is the near neighbour and easier to pour; the shiboridashi trades pouring convenience for the fast heat loss that is the whole point of it.

Often confused with: Houhin

A slatted or double-layered tray that catches the water gongfu brewing deliberately spills.

Gongfu practice involves overflow by design: vessels are rinsed, cups are warmed by filling and tipping, pots are poured over. The tray is furniture for that practice rather than a brewing tool. A deep baking tray, or simply a bowl to pour waste water into, does the same job.

What it is not: Not required equipment, despite being the most photographed object in the subject. Nothing about gongfu brewing depends on owning one.

An unlined cast iron kettle for boiling water. It is not a teapot and leaf never goes in it.

The interior is bare iron, and it is the bare interior — not the shape, not the weight — that separates a tetsubin from the enamel-lined pot it is usually sold beside. Bare iron builds a mineral and oxide layer in use, and water boiled in a well-used kettle is commonly described as tasting rounder; TeaHQ has not found a controlled comparison establishing how large that effect is, and the claim circulates far more confidently than the evidence for it warrants. It has to be emptied after every use and dried by its own residual heat, or it rusts.

What it is not: Not the iron teapot sold under the name in most shops. That vessel has a glassy enamel lining, must never go on a heat source, and any claim that its iron affects the flavour is describing a tetsubin rather than it. The confusion is a practical hazard rather than a naming quibble.

Often confused with: Enamel-lined cast iron teapot

A tall handleless cup for everyday Japanese tea, taller than it is wide.

Height over width means less surface exposed to the air, so tea cools more slowly than it would in a bowl — the opposite design intent from a chawan, which is meant to be drunk warm and quickly. Being handleless means the drinker feels the temperature before their mouth does, a small but real advantage with tea served hot.

What it is not: Not a matcha bowl and not used for whisked tea. It is everyday ware rather than ceremonial, and the two are not interchangeable in either direction.

Often confused with: Chawan

A wide open vessel that water is poured into on its way from the kettle to the leaf, purely to lose heat.

Japanese green tea is brewed well below boiling, and the yuzamashi is the instrument for getting there without a thermometer: pouring into a broad shallow vessel and letting it stand drops the temperature substantially, and every further transfer between vessels costs more. A practitioner calibrates their own kit by tasting rather than by reading a number off a chart.

What it is not: Not a serving jug, despite the resemblance, and not the same object as a fairness pitcher. One manages temperature before brewing; the other evens out strength after it.

Often confused with: Fairness pitcher

The pre-sale listing of every lot on offer, and the document that fixes what a buyer is bidding on.

For each lot the catalogue records the factory or garden, the grade, the invoice number, the number of packages and the net quantity, then gives it a lot number and a position in the sale order. It is the only description a buyer has beyond the sample in front of them, which is why grades carry weight here that they never carry on a shop shelf: a CTC catalogue distinguishes brokens, fannings and dust in a defined descending particle order, and an orthodox catalogue uses the leaf-grade abbreviations that so confuse retail buyers.

What it is not: Not an assessment of quality. Nothing in a catalogue entry says how the tea tastes — that is what the pre-sale samples are for, and it is why the sampling round matters more than the sale room.

The unit an auction sells: a defined quantity of one grade from one factory invoice, offered under a catalogue number.

A lot is indivisible — a buyer bids for the whole of it — and that is what makes auction prices comparable at all. It is also why an auction cannot handle very small quantities: below a minimum size the tea is not worth the sampling, warehousing and handling that surround it. Lots failing to reach their reserve are withdrawn and usually re-offered in a later sale, which leaves the producer carrying inventory and financing cost while the tea does not improve.

What it is not: Not a batch in the speciality sense. A lot is a commercial unit defined by an invoice, not a claim that everything inside it came from one picking or one day.

The business that assembles many lots into a constant recipe — the reason a supermarket packet tastes the same all year.

A blend is a specification held steady against a raw material that changes every season. The blender buys dozens of lots, tastes against a standard, and substitutes as availability and price move, which is why a named blend is a recipe rather than an origin and why its components are commercially sensitive and rarely published. It is the largest single act of value creation in the mainstream tea trade and the least visible to a drinker.

What it is not: Not a way of concealing poor tea. Consistency is a genuine and difficult product attribute, and holding a flavour steady across a decade of harvests takes real skill even when the tea itself is ordinary. A packer, by contrast, only puts the finished blend into bags and cartons.

Often confused with: Packer

A factory with no fields of its own, buying green leaf from surrounding growers and selling the finished tea.

Growers deliver leaf daily to collection points where it is weighed; the factory withers, manufactures, grades and sells, and pays for the leaf supplied. Perishability makes the catchment the operative unit — a factory can only buy from as far away as leaf can travel the same day, and a grower can only sell as far as they can carry. That mutual dependence, rather than any contract, is what sets the balance of power at the weighbridge.

What it is not: Not a marginal arrangement. It is how a large share of the world’s smallholder tea is manufactured, and it is an ordinary industrial structure rather than an aberration.

The intermediary who catalogues, samples and offers a producer’s tea at auction — and who is paid by the seller, not the buyer.

A broker takes tea on consignment, draws and distributes samples to registered buyers before the sale, assigns each lot a catalogue number and a place in the sale order, and offers it in the room. Less visibly, the broker also performs settlement and credit: the producer is paid on a published timetable rather than chasing individual buyers, and that reliability is a large part of why producers use brokers at all.

What it is not: Not the buyer, and not a middleman in the pejorative sense the word usually carries. The broker never takes ownership of the tea, and the commission buys sampling, price discovery and payment machinery a producer selling alone would have to build.

Often confused with: Blender

A matcha marketing phrase with no specification behind it and no body able to stop anyone using it.

Ceremonial, premium and culinary look like a graded scale and are seller vocabulary. There is no registration and nothing to check a claim against. The differences the words gesture at are real — early-harvest shaded leaf milled fine behaves nothing like late-harvest leaf — but they are described far better by the fields a serious seller will supply: harvest, cultivar, region, and whether the leaf was tencha at all. Contrast the word organic, which is a controlled term in most major markets and may only be used with certification.

What it is not: Not evidence about the leaf. A superlative on a packet is evidence about the seller’s marketing and should be set aside rather than weighed. There is also a practical corollary: paying the top price for a delicate early-harvest matcha and whisking it into hot milk with sugar wastes most of what the price bought.

Often confused with: Grade

A grower-owned business that reunites growing and manufacture under collective ownership.

A cooperative owning its factory captures the manufacturing margin its members would otherwise sell away, and one that exports directly captures brokerage as well — that is the main rationale for the form. Its resilience in a downturn depends almost entirely on whether it entered with reserves, since it sits between the estate’s capacity to borrow against assets and the smallholder’s capacity to walk away from the crop for a season.

What it is not: Not automatically a higher price. Ownership changes where a margin lands; it does not create one, and a cooperative selling the same commodity grade into the same market meets the same price as anyone else.

An undefined term for buying from a producer without the auction, the broker and usually the blender in between.

There is no standard, no certifying body and no agreed threshold, so the phrase stretches from a buyer who visits the same maker every year and names them on the packet to a company that buys from an exporter who buys from a garden. What the honest versions share is the removal of intermediaries and a commitment, of varying strength, to naming the producer. It also has a structural limit: it needs a producer who can pack for export, meet documentation requirements and clear a small consignment through customs, which favours those who already have capital, education and connections.

What it is not: Not a statement about price, and not an answer to how most tea growers are paid. A smallholder supplying green leaf to a CTC factory is not a candidate for it and will not become one.

The smallest sieve fraction in the grading order — a named, traded grade with a defined place in a catalogue.

Dust is the finest screen size, and in a CTC catalogue it sits at the bottom of a descending particle order that runs from brokens through fannings to dust. It extracts fastest and most completely of any grade, which is exactly what is wanted where tea is boiled with milk and spices, or brewed to a strong short standard, and it is priced and bid for on that basis.

What it is not: Not floor sweepings, and not waste. It is a deliberate output of the sorting screens, and the word’s ordinary English meaning is doing enormous damage to how it is read on a packet.

A single business owning the land, the bushes and a factory, and employing a resident workforce.

The estate concentrates growing, manufacture and labour in one enterprise, and almost everything else follows from that: how workers are paid, what a bad price year does, whether investment in quality is possible, whether certification is administratively feasible. Costs are largely fixed and the workforce permanent, so a price fall squeezes an estate hardest in absolute terms while leaving it able to borrow against assets. Where an estate also provides housing, water, schooling or rations, those sit on the same cost base — a real and heavy cost that a bought-leaf competitor with no resident workforce does not carry.

What it is not: Not a quality claim and not the universal structure. Estates coexist with smallholdings, cooperatives and grower-processors in proportions that differ by country, and several major producing countries are not organised this way at all.

Often confused with: Garden

A small particle grade sitting below broken leaf and above dust in a defined descending size order.

Fannings are a sieve fraction, produced by the same sorting operation that produces every other grade, and their name describes aperture rather than origin. Particle size governs extraction rate: the same batch sorted into a whole-leaf grade and a fannings grade will brew at quite different speeds and strengths from identical material. That is the entire reason the grade exists — a bag needs a fast, complete extraction in three minutes, and whole leaf will not give one.

What it is not: Not a quality tier and not a by-product of failure. A factory can produce an excellent whole-leaf grade and a poor one on the same day from the same batch, and the grade letters say nothing about the garden, the season or the skill of manufacture.

Often confused with: Poor-quality tea

What a grower receives at the edge of their own field, before anything downstream.

An auction average is a price for made tea, in one currency, already delivered to a warehouse in the auction centre. The farmgate price is what remains after transport, manufacture, the factory’s margin, brokerage and warehousing — which is exactly the part of the chain a grower never sees. Because the two figures are quoted in different units at different points, the gap between them is not by itself a measure of anyone’s conduct, and reading it that way is the commonest error in coverage of tea prices.

What it is not: Not a published number in most places. Where an authority sets or recommends a green-leaf rate, that rate is an instrument of policy rather than an observation of a market.

Often confused with: Auction price

A named producing unit on a label — sometimes an entire estate, sometimes one section of one, and the word fixes no size.

In the Indian and Nepali trade ‘garden’ and ‘estate’ are used almost interchangeably for the same business, and a single factory invoice may cover leaf grown across several separately named sections. Elsewhere the word shrinks: a Chinese or Taiwanese garden named on a vendor’s page is often one field. The result is that a garden name is a strong signal of who made a tea and a weak signal of how much land, how many pickers or how many days of picking stand behind it.

What it is not: Not a standardised or protected unit. Two teas carrying the same garden name can be a hand-sorted spring lot and a routine machine grade from the same season.

Often confused with: Estate

A legally protected origin name that only producers inside a defined boundary, meeting a defined specification, may use.

A GI protects a word, not a standard of taste: it establishes who may use the name rather than how good the tea is. Its value to producers turns on two things the scheme itself does not settle — how narrowly the specification is drawn, since a loose one dilutes the premium across everyone inside the boundary, and who inside that boundary has access to the market. The name also has to be marketed, and that is a collective action problem: every producer inside benefits when it is promoted and none has much incentive to pay.

What it is not: Not automatically pro-smallholder, and not evidence of what is in a packet. Enforcement acts against misuse of the name in commerce, which is a different exercise from testing the tea.

A classification of leaf size, appearance or picking date — never directly of quality.

Grading systems differ by country and describe different things. Indian codes like FTGFOP describe leaf size and tip content. Chinese white tea grades describe what was picked — bud only, bud and leaf, mature leaf. Korean grades describe the picking date. None of them measures how the tea tastes.

What it is not: Not a quality score, and the assumption that a higher grade is a better tea inverts in at least one place: the cheapest white grade, Shou Mei, ages better than the expensive ones.

An environmental statement on a packet — and the only useful question is which of four kinds it is.

A green claim is one of four things: a third-party certification with a scheme and an auditor behind it; a first-party claim a seller makes about itself; a regulated term with a legal definition; or a marketing word with no definition at all. Almost all the information is in which of the four it is, and almost none is in how the claim is worded. That is worth stating baldly, because green wording is designed to be read the other way: considerable effort goes into making a first-party claim look like a certification and an aspiration look like an achievement.

What it is not: Not necessarily false. The point is not that green claims are dishonest but that their wording carries no information about their standing, so the question worth asking is who stands behind the claim and what, if anything, they checked.

The freshly plucked shoot as it leaves the field, and the unit in which most of the world’s tea growers are actually paid.

Green leaf is a different commodity from tea. It begins to deteriorate the moment it is off the bush, so it has to reach a factory the same day — which is why the geography of tea is a geography of short journeys, and why a grower cannot hold a load back while waiting for a better price. Between four and five kilograms of green leaf yield a kilogram of made tea, and nearly all of the difference is water removed in the drier.

What it is not: Not a lower grade of tea. It is not tea at all, and setting a green-leaf rate beside a retail price — as campaigning coverage regularly does — compares a wet weight to a dry one and a field transaction to a shelf.

Often confused with: Made tea

The year, and ideally the season, a tea was picked — a different field from a best-before date and a far more useful one.

Three dates appear on tea packaging and they answer different questions. A durability or best-before date is set by the packer, and for a tea that sat in a warehouse for a year before packing it says very little. A packing date narrows the range slightly and leaves the gap between picking and packing unstated. A harvest date is the one that matters wherever a fragile aromatic fraction is the product. Which of the three a seller prints is itself informative: harvest dates are printed by businesses whose stock turns over fast enough to bear the disclosure.

What it is not: Not universally the field that matters. It inverts for the ageing categories, where a production year is a fact about the tea’s history rather than a countdown, and it is only half the story for flavoured tea, where the useful question — when the tea was scented or blended — is a date almost nobody prints.

Often confused with: Best-before date

Finished, dried tea as it leaves the factory — the industry’s standard unit for production, export and auction statistics.

Every national production figure and auction average is quoted in made tea, and the term exists precisely to distinguish it from the green leaf that went in. It says nothing about category, grade or quality: a tonne of dust and a tonne of hand-rolled leaf are both a tonne of made tea. The distinction matters most when reading yields, since a yield per hectare stated in made tea is roughly a quarter of the same field’s yield stated in green leaf.

What it is not: Not a claim about how the tea was made, despite the wording. ‘Made’ here means finished and stable in storage, not handmade.

A certification accounting rule under which certified and uncertified material may be physically mixed, provided the volume sold as certified never exceeds the volume bought as certified.

Under mass balance the tea in a certified packet need not itself be the certified tea. What is audited is the arithmetic across a company’s books. The alternative, segregation, keeps certified material physically apart the whole way through and costs considerably more to run. Both are legitimate, they mean different things to a buyer, and a label very rarely states which one is in use.

What it is not: Not a claim that the leaf in the box grew on a certified farm. A reader who assumes it is being unreasonable, because the labels are not written to make the distinction easy to see.

Often confused with: Segregation

A legal threshold set compound by compound and market by market, above which a consignment may not lawfully be sold in that market.

An MRL is a trade compliance instrument. Limits are typically derived from supervised trials showing what residue remains when a compound is used according to approved agricultural practice, cross-checked against the relevant reference values, with the lower consideration governing — which is exactly why two jurisdictions publish different numbers for the same compound. It follows that an MRL is a line drawn for administrative purposes on a continuum rather than a boundary between two states of the world. A result above the limit establishes that approved practice for that jurisdiction was not followed. Tea is an unusual case: the harvested product is a dried leaf that is not washed, peeled or cooked, and is consumed as an infusion, and importing markets set their limits accordingly.

What it is not: Not a statement about a drinker, and TeaHQ makes none. An exceedance is a regulatory finding about a consignment. Readers who want to know what regulators conclude beyond that should go to the food regulator of their own jurisdiction, which publishes its own assessments and revises its own limits.

A flavouring substance chemically identical to one occurring in nature but produced by synthesis — and an obsolete legal category still circulating in tea writing.

It was a formal European category and was removed when the flavourings framework was consolidated, such substances being folded into the general class of flavouring substances. TeaHQ has not verified the current wording or the dates and does not assert them. The term persists across retail copy and older reference works, which makes it a good illustration of how label vocabulary outlives the regime that defined it. Where a current label uses it, it is being used descriptively rather than as a defined term.

What it is not: Not a statement about quality, and not a chemical distinction. These categories classify the origin and method of a flavouring preparation, not its chemical identity: a compound obtained from a plant and the identical compound made synthetically are the same molecule.

Often confused with: Natural flavouring

A controlled term in most major markets, usable only with certification — which makes it unlike almost every other word on a tea packet.

Where ceremonial, small-batch and hand-processed have no definition and nobody empowered to stop their use, organic has both. What certification establishes is a production standard and an audit trail, principally about which inputs were used. The agronomic consequence is specific: tea is harvested repeatedly all season off the same bushes and so has a large, repeated nitrogen demand, and removing synthetic nitrogen does not remove the demand. It has to be met from composts and manures, nitrogen-fixing shade trees, cover legumes and pruning litter returned in place, every one of which releases nitrogen slowly and in response to soil temperature and moisture rather than to the crop’s schedule.

What it is not: Not a claim about flavour, and not a claim about what is in a cup. It is a claim about permitted inputs and record-keeping, verified by audit.

Tea blended and packed by one company to be sold under another company’s brand.

A retailer’s own-brand tea is generally made under contract by a business that also supplies branded competitors from the same building. The arrangement gives the retailer margin and shelf position without the manufacturing, and the packer volume without the marketing. It also means a different brand on a shelf is not by itself evidence of a different supply chain.

What it is not: Not automatically cheaper tea, and not automatically the same tea in a different box. The specification is written by the buyer, so a private-label line can sit anywhere from well below to above the branded product beside it.

Tea that has taken up aroma from botanical material laid with it, as opposed to tea carrying an applied flavouring.

The ingredient list settles it, and this is one of the rare label questions a regulated field answers outright. ‘Green tea, jasmine flowers’ is a scented tea; ‘black tea, natural flavouring’ is a flavoured one; a list carrying both has been scented and then flavoured, which is very common in commercial jasmine and Earl Grey and is invisible from the front of the pack. The dry leaf is the second test: a surface-applied flavouring is at its most volatile before water touches it, so a flavoured tea smells dramatic in the packet and modest in the cup, while a well-scented tea smells restrained dry and opens markedly in the wet leaf.

What it is not: Not a claim of superiority, but it is a claim about structure. A flavoured tea is a one-infusion product by construction, because most of the added aroma leaves in the first steep. A scented tea is not.

Often confused with: Flavoured tea

A label claim that everything in the packet came from one producing business — a claim about sourcing, not about a single picking.

Single estate, single garden and single origin form a ladder of decreasing precision, and only the first two name a specific business. None of them restricts the tea to one harvest, one field or one grade, so a single-estate packet can still combine several lots made across a season. The fields worth looking for sit underneath it: harvest year and season, district rather than country, cultivar where stated, and processing detail.

What it is not: Not a quality tier. An estate making ordinary tea is still single estate, and a blend of two excellent gardens is not.

Often confused with: Single origin

A grower working a small plot who sells green leaf on rather than making tea, and who owns no factory.

The smallholder model separates growing from manufacture completely: the household grows and plucks, and a factory it does not own does everything else. That is how most smallholder tea in the world becomes tea at all, because processing capacity is expensive, technically demanding and viable only at scale. It also fixes where the risk lands — income falls immediately and roughly in proportion when the price falls, though costs fall with it and effort can shift to another crop or to work off the farm while the bushes wait.

What it is not: Not a synonym for poor, and not a synonym for artisanal. It describes landholding and where the boundary between growing and manufacture falls, and says nothing about how the tea is made.

The ability to follow a specific quantity of tea back through the chain towards where it was grown.

Traceability is a documentary property rather than a physical one: it rests on records linking a consignment to a factory, a factory to a set of deliveries, and deliveries to growers. It weakens at exactly the point most people assume it is strongest — the bought-leaf collection point, where one day’s manufacture aggregates leaf from many households. Tracing to a factory is normal and checkable; tracing to a farm through a bought-leaf system is a far stronger claim and needs a far stronger system behind it.

What it is not: Not the same as certification, and not an assurance about conditions. Knowing where something came from says nothing about what happened there.