The ladder, from loosest to tightest
Blend: material from more than one source, assembled to a specification. Single origin: from one place, where the place may be a country the size of China and the term is therefore almost unbounded. Single region or district: Uva, Anxi, Shizuoka, Darjeeling. Single estate or garden: one named producing property, which in Assam, Darjeeling and Sri Lanka is a well-defined commercial entity. Single lot or invoice: one production run from one property, identified by a number, which is the tightest ordinary commercial claim. Below that, some producers identify a single section, a single day’s picking, or a single village and household in the Chinese and Yunnan trades. Each rung narrows the range of what the tea can be. None of them says the tea is good, and the terms are frequently used as though they did. There is a parallel ladder for time that behaves the same way and is worth reading alongside it: no date, a year, a season, a specific picking. Provenance in tea is really two coordinates rather than one, and a claim that is tight on place and loose on time is incomplete for any category where freshness matters. The most informative descriptions narrow both, and the least informative narrow neither while sounding as though they have.
Why specificity is worth something anyway
Not because narrow provenance makes better tea, but because it makes tea knowable. A single-lot tea can be described, revisited, compared against last year’s, and held to its description; a blend cannot, because the thing being described is a target rather than a source. Specificity also implies a supply chain that kept records, which is a real and expensive thing that most volume production does not do. And it lets a buyer accumulate knowledge: if you know you like a particular garden’s second flush, that is a fact you can act on next year, whereas liking a breakfast blend tells you about the blender’s specification rather than about tea. The value of specificity is epistemic. It gives you something to learn from, which is different from giving you something better. There is a second and less obvious benefit, which is accountability across years. A seller who names a garden and a lot has committed to a description that can be checked against the next season’s offering from the same source, and buyers do check. That creates a mild but real discipline on both the seller and the producer that a blend, by design, is exempt from. Specificity is therefore doing quiet work in the supply chain as well as informing the person holding the packet.
Why blending is a skill and not a compromise
A blend is built to hold a cup steady while its inputs move. That requires tasting hundreds of lots, understanding how each behaves with milk and in hard water, and adjusting the formula continuously through the year as crops and prices change — and doing it so that the customer never notices. Some of the most widely admired tea products in the world are blends, and a great many single-origin teas would be worse products for the use they are put to. The specific criticism of blending is not that it produces poor tea but that it produces untraceable tea: the same packet is a moving target, so nothing you learn about it transfers. That is a genuine cost, and it is the reason the speciality trade values the other end of the ladder, not any claim about who makes better liquor. Blending also does something no single lot can, which is to combine characteristics that do not occur together. A blend can have the body of one origin, the briskness of another and the aroma of a third, and several of the most recognisable tea products in the world exist because somebody assembled a cup that no garden produces. Judging a blend by how traceable it is misses the point of the exercise as thoroughly as judging a single lot by how consistent it is year to year.
Where each term is slippery
Single origin is the weakest of the four because origin is undefined — used of a country, a region, an estate and occasionally a single bush, all in the same shop. Single estate is strong in industries organised around estates and meaningless where they are not: most Chinese, Taiwanese and Japanese tea does not come from estates in the Indian sense, so the term is either absent or borrowed. Single garden is used interchangeably with single estate in some markets and to mean a section within an estate in others. And single cultivar is a different axis entirely that gets shelved beside these, since a single-cultivar tea may be blended across several gardens and a single-estate tea may contain several cultivars. Reading each term as a specific claim about a specific dimension, rather than as a general assurance, is the whole technique. A fifth term has entered the vocabulary more recently and is slipperier than any of them: micro-lot. It generally indicates a very small production separated out deliberately, which is a real and useful thing, and it has no definition of size, no threshold and no authority behind it. Like the others it is worth reading as a pointer to specificity rather than as a specification, and worth following up with the question it invites, which is how small and from where.
What to ask instead of which rung it is on
Ask what would change if the seller had to be specific. For a tea whose value is in place — a Wuyi rock tea, a high mountain oolong, a Darjeeling flush, a village-level sheng — provenance detail is the product, and vagueness is a real gap. For a tea whose value is in blending and consistency — a breakfast blend, a chai base, an iced tea — provenance detail would tell you nothing you would use. The question is therefore not how specific the label is but whether specificity is load-bearing for this kind of tea. A seller who gives estate and lot for a Darjeeling and says only Assam CTC for a chai base is behaving sensibly on both counts, and a seller who gives a village name for a supermarket blend is telling you something implausible. There is a further test that works when the category is unfamiliar. Ask what the seller would say if pressed for one more level of detail. A supply chain that kept records can always go one step finer — from region to garden, from garden to section, from year to picking — and one that did not will change the subject to the tea’s character. That is not a trap, and it is a fair and informative question, because the answer describes the sourcing rather than the leaf.
How this catalogue records it
TeaHQ carries an origin at country level and separately a list of growing regions on each tea, so that the two questions stay apart, and it leaves the region list empty rather than guessing where a tea’s provenance is genuinely unrecorded. Blends are recorded as blends. Where a named tea is widely imitated, a separate authenticity note carries what is known about substitution rather than folding it into the description. The reason for the structure is the same as the reason for this page: provenance is a set of independent claims at different resolutions, and flattening them into a single field called origin is how a catalogue starts implying things it cannot support. The same reasoning governs how absences are handled. A missing region is recorded as missing rather than filled with a country, and a blend is not given a nominal origin to make its record look complete. A catalogue that fills gaps to appear consistent teaches its readers to trust fields that are sometimes guesses, which is worse than a visible blank — and a visible blank is itself information about how the tea reached the shelf.