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.“

„Yu Shui Cha; 雨水茶. Literally Rain water tea. Summer Tea. Less prized than Spring Tea or Autumn Tea. The flavour is usually less fulsome than Spring tea. Also, it is often oven-dried (hong qing; 烘青) as it is harvested in the rainy season.“