Pu-erh tea

„The process used to convert máochá into ripened pu'er is a recent invention that manipulates conditions to approximate the result of the aging process by prolonged bacterial and fungal fermentation in a warm humid environment under controlled conditions, a technique called Wò Dūi (渥堆, "wet piling" in English), which involves piling, dampening, and turning the tea leaves in a manner much akin to composting.“

„gan cang; 干藏 - dry storage. Referring to tea storage that tends to be dry rather than excessively humid. Storing raw Puer in an excessively dry climate will have a harmful effect on the tea.“