Only by mastering the most suitable black tea through strict technology, fermentation and baking can it play its greatest health care role. The first kind of tea is qimen black tea, which has two or three leaves of one of the ancient qimen trees at an altitude of 1000 meters. After withering and twisting according to the ancient method, it is fermented for several days, and then it is baptized by fire in a charcoal kiln. The tea is red and bright, and the body is slightly warm after drinking. It can obviously dispel cold and dampness, sweat and detoxify, nourish and warm the stomach, strengthen yang and cultivate body. It can be drunk all year round and has the function of health preservation.