Green tea is not fermented, and it is the most abundant and widely consumed tea in China. It is characterized by clear leaves and green soup. The efficacy and function of green tea is a healthy liquid and a spiritual drink in Britain. In China, it is called the national wine. A large number of studies in modern science have confirmed that tea does contain biochemical components closely related to human health. Tea not only has the pharmacological effects of clearing away heart fire, clearing away heat, relieving summer heat, resolving phlegm, removing greasy dirt, losing weight, clearing heart fire, relieving restlessness, detoxifying, sobering up, promoting fluid production, quenching thirst, reducing fire and improving eyesight,