One Chinese green tea avoids moisture: Chinese green tea tea is a loose and porous hydrophilic substance, so it has a strong hygroscopicity. When storing Chinese green tea, a relative humidity of 60% is more suitable. If it exceeds 70%, mildew spots will occur due to moisture absorption, and then it will be acidified and deteriorated.
2. Chinese green tea avoids high temperature: The best storage temperature of Chinese green tea is 0-5℃. If the temperature is too high, the amino acids, sugars, vitamins and aromatic substances in the tea will be decomposed and destroyed, which will reduce the quality, aroma and taste.
Three Chinese green tea avoid sunlight: Sunlight will promote the oxidation of pigments and esters in Chinese green tea leaves, and it can decompose chlorophyll into pheophytin. Chinese green tea leaves are stored in glass containers or transparent plastic bags. After being exposed to sunlight, their internal substances will react chemically to deteriorate the quality of Chinese green tea leaves.
4. Chinese green tea avoids oxygen: Chlorophyll, aldehydes, esters, vitamin C, etc. in Chinese green tea tea are easy to combine with oxygen in the air. The oxidized Chinese green tea tea will make the Chinese green tea tea soup reddish and darken, making it nutritious The value is greatly reduced.
5. Chinese green tea avoids peculiar smell: Chinese green tea contains high-molecular palmase and terpene compounds. This kind of material is very unstable and can absorb odors. Therefore, when Chinese green tea leaves are mixed with odorous items and stored, they will absorb the odor and cannot be removed.