How long is the shelf life of green tea?

The shelf life of green tea at room temperature is generally about one year. But the main factors affecting the quality of tea are temperature, light and humidity. If these factors are reduced or eliminated by correct storage methods, the quality of tea can be guaranteed for a long time.

Judging whether tea has expired mainly includes the following aspects:

See if it is moldy or stale; Whether green tea turns red or not, soup turns brown, and the concentration, convergence and freshness of dark taste decrease. In addition, it depends on the shelf life on the package. In addition, if it is bulk tea, it is best not to drink it for more than 18 months.

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How to preserve green tea:

1. When green tea leaves are enjoyed again, they should be filled as much as possible, leaving no open space, which can reduce the air in the storage space and help maintain the quality of precious tea leaves.

2. It is best to buy a small amount of tea or store it in small packages to reduce the number of times to open the packages and prevent repeated contact with the air. This can not only ensure the quality, but also facilitate re-brewing.

3. Tea can be stored in a drying box or a clay pot. Put double-layer cotton paper at the bottom of the cylinder and double-layer cotton paper at the mouth of the cylinder, and then press the cover.

Green tea can be stored in a jar with a double cover. Paper cans are better, and other tin cans and tinplate cans will do. Still have to put a layer of cotton paper or kraft paper in the jar first, and then cover it.

It is best to prepare a small refrigerator for storing green tea, set the temperature below -5℃, seal the unopened seal tightly and put it in the refrigerator. Otherwise, it is ok to store tea in the freezer of the general refrigerator, but other things cannot be stored.

6. You can use a clean thermos to pour unopened tea into the bottle and plug it for preservation.