How is the deterioration of green tea?

Did you buy green tea? The shelf life of tea is generally 1 year, even if it expires, you can drink it, but the taste is a little poor. White tea may be drunk with fluff, and green tea will lose its taste and taste if it is not kept in the refrigerator. Tea itself stinks. It's best not to put it in the cupboard. Green tea should be put in the refrigerator, and Pu 'er can be put in the cupboard.