Why does gift box tea have no shelf life?

Tea belongs to drinks, and its initial state is loose tea, and the packaging part of tea is universal, that is, it is ready to be packaged for use in advance, instead of completely packaging tea and gift boxes at one time. Tea can be simply put into gift boxes by bagging, which is more flexible, so some gift box teas have no shelf life.

The shelf life of tea is related to the variety of tea, and different teas have different shelf lives. For example, Pu 'er tea and Anhua black tea are fermented products, and the shelf life can reach 10 ~ 20 years.

The key to tea preservation lies in the water content of tea itself and the moisture-proof performance of packaging materials used. If the water content of tea can be kept below 7%, tea will not deteriorate within 12 months.

To remove moisture from tea leaves, you can use an oven, microwave oven or wok, but be careful not to have odor and impurities. After the tea leaves are fried, they should be thoroughly cooled and packaged for preservation.