The infusion is the late form
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
A reader who assumes that tea has always meant leaf steeped in water and the leaf then discarded has the sequence backwards. In the Chinese record, the leaf was compressed, roasted, ground and boiled for centuries; then ground fine and whisked into the water it was drunk with, so that the leaf was consumed rather than discarded; and only from the Ming period onward was steeping and discarding the dominant method. Outside China the older forms were never displaced, because a place that received tea before the Ming shift generally kept what it had received. Eaten and cooked tea is therefore not a curiosity at the margins of the subject. For most of tea’s documented history it was either the main thing being done with the leaf or one of two things being done with it, and the modern assumption that infusion is the default is a fact about the last few centuries and about which regions the export trade happened to serve.
Eaten leaf, and where it is still eaten
A description of something people do now, compiled from published accounts rather than from practice.
Fermented and pickled tea leaf eaten as a food survives in a continuous band across the uplands where the plant is native. Burmese lahpet is the best-known example: leaf steamed or blanched, packed and pressed to ferment, then dressed and eaten as a salad or served with fried garlic, beans and seeds as a formal offering to guests. Miang in northern Thailand is a related preparation, leaf fermented and chewed in a wad, historically produced by upland households and traded down to the lowlands. Neither is a substitute for a drink and neither is a survival kept alive for tourists; both are ordinary food with their own supply chains, grades and prices. What they establish for a tea catalogue is that the plant entered human use as a plant, in a zone where people ate a great many leaves, and that the drink is a specialisation of that rather than a starting point.
Cooked with other things, and the argument about it
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The Cha Jing complains at length about tea boiled together with spring onion, ginger, jujube, orange peel, dogwood and mint. A complaint of that length is evidence about what people were doing, and it establishes that in the eighth century cooking tea with aromatics was common enough to be worth arguing against. That is the ancestor of a very large family: the salted butter tea of the Tibetan plateau, the milk-and-salt preparations of the Mongolian steppe, the spiced and boiled milk teas of South Asia, the Bai three-course service of Yunnan. All of them boil, all of them add, and all of them are continuations of the older Chinese practice rather than deviations from a purer steeped original. The purist position — leaf, water, nothing else — is a position that won an argument in one country at one period, and it has been mistaken for the natural state of the subject ever since.
Tea in the early medical literature, and what TeaHQ will not do with it
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Tea appears in the early Chinese pharmacological literature, in the compilations of materia medica that catalogue plants alongside their traditional applications, and that appearance is a real part of the record: it is one of the reasons the leaf was written about at all, and it shaped which social groups handled it early — physicians and monasteries as well as merchants. TeaHQ records that tea is listed in those compilations and stops there. It does not summarise what any of them asserts, does not carry those assertions forward as claims, and does not present a historical listing as evidence about anything. The reason is a rule that applies across this catalogue and not a judgement about the texts: no source held here is countersigned for claims about effects on people, so no such claim may be published, and repeating a classical assertion inside a history guide would be exactly the laundering that rule exists to stop. What belongs in a tea catalogue is the fact of the listing and its consequences for who handled the leaf.
Why the food forms are described as primitive, and why that is wrong
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Compressed, boiled and eaten teas are routinely presented in Western writing as rough, rustic or unrefined, and the framing is a consequence of trade geography rather than of the product. The European tea trade bought at Canton, from the export industry of a country that had already moved to loose leaf, so what Europe learned to call tea was one branch of a much older tree. Everything on the other branches then looked like a deviation. The Tibetan brick is not an unimproved cake; it is a format optimised for a journey that a loose leaf could not survive, produced to specifications a purchasing state laid down. Lahpet is not a failure to make tea properly; it is what the leaf is for in that place. When a description of a tea reaches for words like primitive or unevolved, the useful question is which trade route the writer’s definition of tea arrived by.
What this changes about reading the catalogue
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Three things. Categories such as green, white, oolong, black and dark are products of the loose-leaf era and mostly of the Ming and Qing periods within it; they organise the modern trade well and they do not describe anything permanent about the plant. Preparation and product co-evolved, so a method is evidence about the manufacture it was designed for and vice versa — a whisk implies a fine powder, a brick implies a long journey, a small pot implies a leaf that gives repeated infusions. And the survival of an older form somewhere is usually a fact about when that place received tea rather than about how conservative it is. TeaHQ organises its catalogue by the modern categories because that is what the trade uses and what a reader is buying against, and holds the older map alongside it, because a great deal of tea writing’s confusion comes from having only one of the two.