Hello, tea in constant temperature (recommended 0 to -5 degrees), sealed to imitate the odor, moisture and mildew under good conditions such as storage for 1 year are not too many problems. But if the time is too long or the storage environment is not good, the tea flavor, tea aroma, tea type, tea color will change, and even astringent and unpleasant. So it is not recommended to go to drink tea stored for a long time, because the nutrition and taste are greatly reduced, and some may deteriorate in the appearance can not be seen.

Taobao: Jinzhai County Mingxiangyuan tea company