Usucha and koicha: thin tea and thick tea explained

You will meet two words very early on the path of tea, and they trip up almost everyone: usucha and koicha. They are not grades of matcha, and they are not brands. They are two different ways of preparing the same powder, and knowing which is which will save you a great deal of confusion when you read a tin or a recipe.

Usucha — thin tea

Usucha, literally “thin tea,” is the everyday form and the one nearly everyone in the world actually drinks. More water, less powder, whisked briskly until a light, even foam covers the surface. It is bright, a little brisk, gently bitter and easy to love. This is where you begin, and it is what almost every guide — including ours — is describing. A whisk with many fine tines, like a 100-prong Takayama chasen, is made for it, because thin tea lives or dies on its foam.

Koicha — thick tea

Koicha, “thick tea,” is another country entirely. Very little water, a great deal of powder, and instead of whisking you knead — folding the paste slowly until it is smooth and glossy, closer in texture to warm honey or paint than to a drink. It is intense, sweet, almost savoury, and it demands the very best matcha, because there is nowhere for a flaw to hide. Koicha is the heart of a formal tea gathering, shared from a single bowl. A whisk with fewer, sturdier tines suits the heavier work.

Which should you begin with?

Usucha, always. Koicha asks for expensive tea and a steadier hand, and it is easy to waste good matcha learning it. Start thin, get comfortable with the whisk and the water, and let koicha wait until you are curious enough to seek it out. There is no hurry — most people who love matcha drink usucha their whole lives and never feel they are missing anything.

A note on the powder

You will sometimes see matcha sold as “for koicha” or “for usucha.” That distinction is real and comes from the maker in Japan — unlike the invented “ceremonial grade” you will meet on Western tins, which we untangle here. For thin tea at home, a good everyday matcha and an honest whisk will take you a very long way.