The shelf life of loose black tea is generally 18 months, and up to 24 months for black tea packed in sealed bags, tins or wrapped in aluminum foil.

It takes three to nine months to transport black tea from Sri Lanka to the rest of the world, and it has been found that the quality of black tea declines during this period, even if it cannot be sold.

A number of foreign experts after research found that the quality of its temperature, light, humidity, packaging and other effects. Due to the improvement of processing and storage technology, the shelf life of loose black tea is now generally 18 months, sealed bags, canned or packaged in aluminum foil paper black tea shelf life of up to 24 months. But buy back after not pay attention to save, will accelerate the deterioration of black tea.

Expanded Information:

Black Tea: When buying and storing, pay attention to the following:

1, the water content should be lower.

Research shows that the optimal moisture content of tea storage is 3%, reaching 6% or more, tea deterioration is quite obvious. Therefore, the purchase of black tea, especially bulk products, pay attention to the water content, if a finger gently rubbed, the tea immediately into powder, indicating that the water content of 6% or less, suitable for preservation; if you can only rub into the end of the flakes, it is best not to buy.

2, placed in a dry environment.

Tea is a kind of hygroscopic food, the black tea will be stored in a dry place to prevent mold. Some people in order to remove the moisture in the tea, will be placed in the hot sun to dry, which is detrimental to the quality of tea, easy to lose the proper color, aroma and taste. In addition, high temperature, exposure to air will accelerate the oxidation process of tea, it is recommended to use aluminum foil or clean tin cans sealed, low temperature storage.

People's Daily Online - black tea also has a shelf life: sealed cans are easy to store, dry environment to prevent mold