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Tea has a shelf life, but it is related to the variety of tea. Different teas have different shelf life. Like Pu'er tea in Yunnan, brick tea of ethnic minorities, Chenhua is better, with a shelf life of 10 to 20 years. Another example is Wuyi Rock Tea. In the next year, Chencha is rich in aroma and rich in flavor; black tea in Hunan, brick tea in Hubei, Liubao tea in Guangxi, etc., as long as they are properly stored, will not only deteriorate, but even improve the quality of tea.
The average tea is still fresher. Such as green tea, the shelf life is usually about one year at room temperature. However, the main factors affecting the quality of tea are temperature, light and humidity. If the storage method is appropriate to reduce or eliminate these factors, the tea can be preserved for a long time.
Judging whether the tea is out of date, there are mainly the following aspects: see if it is moldy, or smelling; whether green tea is red, the color of the soup is brown and dark; the concentration, astringency and freshness of the taste are decreased, in addition to seeing it The shelf life on the package, and if it is bulk tea, it is best not to drink more than 18 months.
The tea we buy is basically 7 grams per pack. This tea packaging method uses vacuum compression packaging. If it is such a package, it is packed with outer cans, if you are in the near future (within 20 days) If you want to finish it, you only need to put it in a cool place and keep it away from light. If you want to achieve the best effect and the longest time limit for the preservation of Tieguanyin tea, it is recommended to keep it at 5 degrees in the quick freezing box. effect.