The shelf life of six major types of tea leaves

Drinking three or two cups of tea every day can have a health promoting effect. The storage of tea is closely related to health. Does tea have a shelf life? Tea also has a shelf life, which many consumers are unaware of and tea merchants are unwilling to admit, so many tea packaging does not indicate it.

dark tea

Pu’er tea is divided into two types: raw tea and ripe tea. Generally speaking, the shelf life of raw tea is about 5 years, while ripe tea becomes more fragrant with special fermentation. The shelf life of tea leaves is over 15 years. Different teas have different shelf lives. Yunnan Pu’er tea, a brick tea from ethnic minorities, tends to age better and has a shelf life of up to 10 to 20 years. For example, Wuyi rock tea has a rich aroma and mellow taste when aged the following year; Black tea from Hunan, Fuzhuan tea from Hubei, Liubao tea from Guangxi, etc., as long as stored properly, not only will they not spoil, but they can even improve the quality of tea leaves.

black tea

Generally, the shelf life of black tea is relatively short, usually 1 year. The shelf life of second and autumn picked black tea is 1-2 years, while Ceylon black tea has a longer shelf life, with more options being 2 years. The shelf life of bulk black tea is generally 18 months, while bagged black tea has a shelf life of 24 months. Canned or aluminum foil wrapped black tea can be stored for about three years, and paper bag wrapped black tea can be stored for about two years.

green tea

Generally, fresh tea is better. Like green tea, the shelf life is usually around one year at room temperature. However, the main factors affecting the quality of tea are temperature, light, and humidity. If stored properly and these factors are reduced or eliminated, tea can be preserved for a long time.

white tea

White tea is said to be better as it ages, but it also needs to be stored well. Generally, white tea should be sealed and stored, otherwise it will lose its moisture or dampness. The saying goes that only by being well preserved can one achieve one year of tea, three years of medicine, and seven years of treasure.

Yellow Tea

Yellow tea belongs to the fermented tea category. The production of yellow tea is similar to that of green tea, with the difference being the addition of a steaming process. So yellow tea, like green tea, has a shelf life of only about one year.
Oolong tea (green tea)

There is no clear regulation on the shelf life of oolong tea, and the key to tea preservation lies in the moisture content of the tea itself and the moisture resistance of the packaging materials used for small packaged tea. Can maintain a moisture content of less than 7% in tea leaves and prevent excessive aging of tea quality within 12 months; Moisture content below 6%, fully sealed in an iron can like canned food, will not age excessively within 3 years; If the moisture content is greater than 9%, it is difficult to guarantee that it will not spoil within 3 months.

The packaging and storage methods also affect the shelf life

Usually, the shelf life of tea leaves in sealed packaging ranges from 12 to 24 months. The shelf life of bulk tea is shorter because the process of placing it outside in bulk can absorb moisture and odors, which not only causes the tea to lose its original flavor, but also makes it more prone to spoilage. Like green tea, fresh is generally better. The shelf life is generally around one year at room temperature. The main factors affecting the quality of tea are temperature, light, and humidity. Does tea have a shelf life? If stored properly, reducing or eliminating these factors can ensure the quality of tea for a long time.

How to determine if tea has expired

To determine whether tea leaves have expired, there are several aspects to consider: firstly, checking for mold or aged taste; The second is to check the color of the tea soup, such as whether the green tea turns red, whether the soup color turns brown or dark; The third aspect is taste, which mainly depends on the concentration, astringency, and freshness of the tea soup. Does tea have a shelf life? Except for black tea, most tea leaves have a shelf life. If it is loose tea and has been purchased for more than 18 months, the production time will be even longer. It should be consumed with caution.