Black tea is a kind of fully fermented tea, which is refined through a series of technological processes such as withering, rolling (cutting), fermentation and drying. Withering is an important process in the primary processing of black tea, which is called "black tea" in the primary processing. Black tea is named after the tea soup and leaf background color are red after brewing dry tea. This tea is thin and tight in shape, with a sharp peak, dark and oily in color, red and bright in soup, rich and lasting in aroma and mellow and sweet in taste.
Green tea refers to a beverage made from new leaves or buds of tea trees without fermentation, after deactivation, shaping and drying. The color of the finished product and the brewed tea soup retain the green style of new tea. Clear soup and green leaves are its quality characteristics. The finished tea strips are slender, white, rich and green in color; The soup is green and clear, with rich aroma and fresh and mellow taste.