Pu-erh tea

„Pu-erh tea processing, although straightforward, is complicated by the fact that the tea itself falls into two distinct categories: the "raw" Sheng Cha and the "ripe" Shou Cha. All types of pu-erh tea are created from máochá (毛茶), a mostly unoxidized green tea processed from a "large leaf" variety of Camellia sinensis (C. sinensis assamica) found in the mountains of southern Yunnan.“

„bing; 饼 - cake. Something shaped like a cake. 茶饼; cha bing - tea cake. This is a cake of tea that has been pressed by hand or machine into a compact form. Easy for transporting and storage. The more tightly pressed it is, the slower the tea will age. They can range in size from 100 gms to several kilograms.“