Does the subject want to ask "what kind of tea is Xiaotuocha"? Black tea. Pu 'er Xiaotuo tea, produced in Yunnan, is one of the types of black tea, which belongs to the pressed tea in black tea. Xiaotuocha is black tea, because a lot of tea in China is in bulk, so it is difficult to preserve and transport, especially for some people who often walk outside, such as nomadic people in the past, who make a living by transportation. In this way, a compact solid tea is gradually formed.