Puerh History - Pu-erh.Net

„Mushroom shaped tea appeared in 1912. It was invented at that time in order to prevent the tea from going mouldy during the transportation. It was produced in Xia-Guan and Fo-Hai (two cities in south China) with the trademark "Bao-Yan". The production was then stopped in 1966. In 1986, the production was resumed due to the request of Buddhists in Tibet.“

„Bitterness
Broad leaf variety (Sinenesis Assamica) is high in natural constituents; polyphenols, caffeine,theine, etc. A particularly bitter flavour is a special characteristic of the Broad leaf variety, but it is important that it transforms quickly and does not linger. This is a mark of good quality Puer. NB there is a sub-variety in Yunnan - Var. ku cha which has different characteristics and does not transform in the same way.“