Pu-erh tea

„The recently developed Wo Dui process (渥堆) pioneered by both the Menghai and Kunming Tea Factories has created a new type of pu-erh tea of which some traditionalists dispute the legitimacy. This process involves an accelerated fermentation into "ripe" Shou Cha (熟茶) which is then sold loose or pressed in various shapes.“

„Pos­si­bly the most neb­u­lous of tea’s qual­i­ties are ascribed to 茶氣 [chá qì] — a tea’s “energy.” Most read­ers will prob­a­bly be famil­iar with at least some of the wide rang­ing effects it is attrib­uted with. Prac­ti­cally any phys­i­cal or men­tal stim­u­lus out­side of the mouth, nose, and throat falls into the realm of cha qi.“