2. Ordinary mature tea is Pu 'er tea. Cooked tea is a kind of fermented tea, which is warm and mellow. Drinking cooked tea will not hurt the stomach and affect sleep. Therefore, drinking cooked tea at night is also a good choice. Pu 'er tea is a kind of loose tea and pressed tea, which is made from Yunnan big leaf dried green tea in a certain area of Yunnan. Pu 'er tea is one of the most distinctive teas in China.
3. Rock tea is an oolong tea. There are usually Dahongpao, cinnamon and Beidou. This kind of tea is a good helper to warm and strengthen the stomach. Contains essential elements for human body, such as vitamins A, D, E and water-soluble vitamins such as inositol.