A manual, in ten short chapters
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The Classic of Tea — Cha Jing — is attributed to Lu Yu and conventionally dated to the second half of the eighth century, during the Tang dynasty. It is short: three scrolls, ten chapters, and a modern English translation runs to a slim volume. The chapters are practical and ordered like a handbook. The origin and nature of the plant. The tools used to pick and process it. How it is made. The utensils needed to brew and drink it, described item by item. How to boil it. How to drink it. A compilation of earlier written references to tea. Where it is grown, district by district, with the districts ranked. What may be dispensed with when you are somewhere rough — in a forest, on a mountain — and what may not. And a final chapter instructing the reader to write the whole thing out on scrolls and hang them where tea is being made, so that the text is visible during the work. That last instruction tells you what kind of book it is. It is a reference to be consulted at the bench, not a meditation.
The preparation it describes is unrecognisable
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Tang tea arrived as a compressed cake. The Cha Jing has the drinker roast the cake at the fire until it softens and colours, let it cool, then grind it and pass the powder through a sieve. Water is heated in an open cauldron and judged by its bubbling, in three stages that later writers rendered as fish eyes, a string of pearls at the edge, and turbulent waves. Salt is added at the first stage. At the second, a ladle of water is drawn off and reserved, a whirlpool is stirred into what remains, and the measured powder is dropped into the centre of it. At the third, the reserved water is poured back to stop the boil and settle the surface. The froth that rises through this — described in the text with attention and admiration, and given its own vocabulary — is treated as the best part of the drink and is distributed between the bowls. Everything in that sequence is foreign to modern practice: the cauldron, the salt, the powder, the boiling, the froth as the prize.
It is arguing with somebody
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The text is pointed about a competing practice: boiling tea together with spring onion, ginger, jujube, orange peel, dogwood or mint, skimming the result and drinking it. Lu Yu compares the outcome to water fit to be thrown into a ditch. This is more useful than it looks. It establishes that in the eighth century, cooking tea with aromatics was ordinary enough to need arguing against — so the spiced and boiled preparations that survive across Central Asia, Tibet and South Asia are not later corruptions of a pure Chinese original. They are one of the two things people were already doing, and the one that lost the argument in China. It also makes the Cha Jing the earliest well-known instance of a permanent figure in tea writing: the expert objecting, at length, to what everyone else puts in the pot. There is a second running argument in the text, about carelessness rather than about additions: water drawn from the wrong source, a boil taken too far, tea left to stand until it cools, bowls chosen badly. Instructions of that kind are only worth writing where the fault is routine, so the Cha Jing is best read as a corrective document — and a corrective document is evidence about what it was correcting. What it corrects is a widespread, casual, cooking-oriented tea practice that plainly existed and that no later account of Tang tea would preserve if this book had not complained about it.
What it does not contain
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
There is no steeping of loose leaf, because loose-leaf steeping was not the practice for another six hundred years. There is no whisking in a bowl; that is Song, a few centuries later. There is no small pot, no gaiwan, no sequence of short infusions, no ceremony in any sense that chanoyu or gongfu cha would recognise, and no philosophy of hospitality. The twenty-four utensils it lists are for roasting, grinding, sieving, measuring, boiling and ladling. When a shop describes its brewing method as following the Classic of Tea, or attributes a rule about water temperature or steeping time to Lu Yu, the claim is essentially always false, and usually made by someone who has never opened the book. TeaHQ says this bluntly because the appeal to the Cha Jing is one of the most common pieces of unearned authority in tea retail. There is a subtler version of the same misuse. Because the book has ten chapters and an orderly structure, it is sometimes presented as a systematic philosophy of tea from which a doctrine can be extracted. It is a manual. The flashes of aesthetic judgement in it — about the froth, about mountain water, about which bowls flatter the liquor — are asides in a technical document rather than its purpose. Reading it for a philosophy is like reading a nineteenth-century engineering handbook for a theory of beauty: you will find sentences that serve, and you will be constructing the argument yourself.
The chapter people should read is the one about water and place
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Two parts of the text have aged remarkably well. The chapter on producing districts ranks growing areas against each other and discusses how site affects the leaf — sunny slopes against shaded ones, stony ground against thin earth — which is a recognisably terroir-shaped argument written eleven centuries before the word existed. And the discussion of water grades mountain water above river water above well water, with further discrimination within each. Whatever one makes of the specific rankings, the underlying claim — that the same leaf gives a different drink depending on where it grew and what water it meets — is the claim the entire modern speciality trade rests on. It was already the interesting question in the eighth century. It is worth being honest about the limits of that reading too. The rankings are not accompanied by anything a modern reader would recognise as reasoning, the categories of water are not defined in terms anybody can now test, and some of the district rankings plainly reflect what was fashionable at court. TeaHQ is pointing at the shape of the argument rather than endorsing its conclusions. What survives is the premise — that site and water are variables rather than constants — which turned out to be right and which took European wine writing several more centuries to formalise for its own subject.
Why it mattered that it existed
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The most significant thing about the Cha Jing may simply be that somebody thought it worth writing. A systematic manual with a ranked list of producing districts, a compilation of earlier textual references, and a chapter on what to do when you are brewing away from home implies a great deal: a tea trade extended enough to need organising, a body of prior writing to compile, and a readership that wanted to be correct about the subject. Tang tea was taxed, moved over long distances and already an object of connoisseurship. The book is evidence of an established economy, not the beginning of one — and later Chinese, Japanese and Korean tea literature refers back to it constantly, which is how a technical manual becomes a founding text. One further thing about the text’s own transmission belongs here. It survives through later copies and printed editions rather than in an eighth-century manuscript, and the version modern readers work from is the product of a long editorial tradition with real variants. English translations differ in places, sometimes substantially, and two of them set side by side will contain passages that do not obviously describe the same operation. That is ordinary for a text of this age, and it is a good reason to be cautious about any argument built on a single translated sentence — including the arguments in this guide.