Tea drinks is a good summer cooling purposes. Li Shizhen "Compendium of Materia Medica" contains: "tea bitter cold,…… most downbear fire, the fire was riddled with fire down the supernatant矣.……-Morning drink was dropped due to fire, heat and hot drinks, or by Powder. "in the dog days of midsummer, when the cool air, and Shu Qi pressing, drink a glass of cool, or hot cup of Tieguanyin Tieguanyin will feel physically and mentally cool, Sheng Jin Jieshu. This is because the type of tea polyphenols contained in tea, sugar, amino acids, pectin, vitamins, and other saliva from the mouth of a chemical reaction, moisten the mouth, it can play the role of Shengjinzhenghe. At the same time, Tieguanyin of caffeine role in bringing a lot of energy from the skin pores in the human body falling apart. According to report