Puerh History - Pu-erh.Net

„At the beginning of 1990s, many small tea factories were born. Some of them started to use class level 3 (or even higher) raw tea (which was only available for emperors in the past) instead of level 6 (or even lower) raw tea (which was the traditional material for producing Pu Erh Tea).“

„Pu-erh shape - Mushroom - Literally meaning "tight tea," the tea is shaped much like túocha, but with a stem rather than a convex hollow. This makes them quite similar in form to a mushroom. Pu'er tea of this shape is generally produced for Tibetan consumption, and is usually 250g or 300g.“