Chinese tea-drinking habits have existed since ancient times. Drinking two to three cups of tea daily can provide health benefits. The storage of tea leaves is closely related to health, and many friends often ask: What is the general shelf life of tea? Some say six months, one year, two years, or even a few months. So, what exactly is the shelf life of tea?

Tea does have a shelf life, generally 18 months. The shelf life varies depending on the type of tea. Fully fermented teas like Pu'er tea and black tea have a shelf life of 10–20 years. Therefore, the state has not set an expiration date for them. Similar teas include Wuyi rock tea and Guangxi's Liubao tea. If stored properly, aged teas from the previous year can become more fragrant and mellow, not only not spoiling but even improving in quality.

Typically, the shelf life of sealed packaged tea ranges from 12 to 24 months, while loose tea has a shorter shelf life. For most teas, freshness is preferable. For example, green tea generally has a shelf life of about one year at room temperature. However, factors such as temperature, light, and humidity significantly affect tea quality. If stored correctly by minimizing or eliminating these factors, tea can be preserved for a long time.

To determine whether tea has expired, consider the following: first, check for mold or a stale odor; second, observe the color of the tea liquor—for instance, whether green tea has turned red or the liquor has become dark or brown; third, taste the tea to assess its concentration, astringency, and freshness.