Green tea, also known as non fermented tea. Green tea is not fermented tea, so it retains more natural substances of fresh leaves, and contains more tea polyphenols, catechins, chlorophyll, caffeine, amino acids, vitamins and other nutrients. These natural nutrients in green tea have special effects on anti-aging, anti-cancer, anti-cancer, sterilization, anti-inflammatory and so on, which are inferior to other teas. Green tea is a kind of tea, which is made from the suitable new shoots of tea trees by the typical process of killing, rolling and drying. The color of the dried tea and the tea soup and leaf base after brewing are mainly green, so it is called green tea. Green tea is a kind of green tea, which is made of the fresh leaves after being killed by high temperature, all kinds of oxidases and kept green. Green leaves in clear soup are the common characteristics of green tea. Green tea is unfermented, with the largest production in China and the most widely consumed tea. It is characterized by clear soup, green leaves, rich nutrition and disease prevention.
For green tea, the fresher the taste, the better. Some experiments have shown that under the condition of normal temperature and light storage, chlorophyll will be quickly decomposed, making green tea become yellow tea stalk; amino acids will be degraded, making the tea taste lost; the fat that has nothing to do with the taste will also be degraded into a small amount of alcohol, aldehyde and acid, giving off strange taste, which will greatly reduce the taste of tea. Therefore, the fresh green tea should be kept in a low temperature, dark and oxygen free environment for a longer time