Pu-erh tea

„Maocha can be sold directly to market as loose leaf tea, compressed to produce "raw" Sheng Cha, naturally aged and matured for several year before being compressed to also produce "raw" Sheng Cha or undergo Wo Dui ripening for several months prior to being compressed to produce "ripe" Shou Cha.“

„The fermented dark tea, Hei Cha (黑茶), is one of the six classes of tea in China, and pu-erh is classified as a dark tea (defined as fermented), something which is resented by some who argue for a separate category for pu-erh tea.“