Pu-erh tea

„Depending on the desired product and speed, from quickest and tightest to slowest and loosest, pressing can be done by a lever press, which was operated by hand for tight pressings and has largely been replaced by the modern hydraulic press.“

„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.“