Tea, commonly known as tea, generally includes leaves and buds of tea trees. Alias tea, _ (Ji m), Ming, _ (Chu m). Tea contains catechins, cholesterol ketone, caffeine, inositol, folic acid and pantothenic acid, which is beneficial to health. Tea beverage made of tea is one of the three major beverages in the world.

Tea originated in China, and it was first offered as a sacrifice. However, it was used as food by people from the late Spring and Autumn Period, developed into medicine in the middle of the Western Han Dynasty, developed into a high-grade palace drink in the late Western Han Dynasty, and became popular among the people as a common drink after the Western Jin Dynasty. The earliest traces of artificially planted tea were found in Tianluoshan site in Yuyao, Zhejiang Province, with a history of more than 6,000 years. Tea drinking began in China. The leaves are leathery, oblong or oval, and can be directly soaked in boiling water. It is divided into six categories according to varieties, production methods and product shapes. According to seasons, it can be divided into spring tea, summer tea, autumn tea and winter tea. Various kinds of crude tea or refined tea are reprocessed to form added tea, including scented tea, pressed tea, extracted tea, medicinal health tea, tea food and tea beverage.