Due to the strong adsorption and easy absorption of odors in tea leaves, and because the aroma components of tea are mostly formed through processing, they are relatively unstable and prone to natural evaporation or oxidative deterioration. Therefore, it is recommended that consumers use the following methods when storing opened tea leaves:
(1) Use a drying box: Because the temperature in a drying box is stable and it isolates the air, storing tea leaves in a drying box prevents moisture and oxidation.
(2) Use a refrigerator: To maintain the freshness and aroma of tea, it is best to store it at low temperatures, especially for finer teas such as Longjing, Biluochun, and Huangshan Maofeng, which require refrigeration. It must be noted that the refrigerator used to store tea must be clean, hygienic, and free of odors, and should not store anything other than tea.
(3) Use a thermos: Clean the thermos thoroughly, pour the tea leaves to be stored into the bottle, and seal it tightly with the stopper.
(4) Use cans: First, divide a small amount of tea into small cans for easy access, and store the remaining tea in a large sealed can. It is best not to use glass jars, porcelain jars, wooden boxes, or medicine bottles, as these materials are transparent, moisture-prone, and fragile. Suitable can materials include: Tin or iron cans: These are opaque and the most suitable material. Before packing, line the inside of the can with a layer of tissue paper or kraft paper, and ensure the can is clean, dry, and odor-free. Iron cans: Double-lid cans are best; line the inside with tissue paper or kraft paper before packing, and seal the lid gap with adhesive tape. Sealed cans: Sealed cans sold on the market are often transparent; when using them, it is best to first pack the tea leaves in aluminum foil bags before placing them in the sealed can. Additionally, a desiccant can be added to enhance moisture resistance.
(5) What to do if tea leaves become damp and soft? You can use an oven, microwave, or frying pan to remove moisture from the tea leaves. However, ensure that the oven, microwave, or frying pan is free of odors and debris. The baking time also requires experience; additionally, wait until the tea leaves have completely cooled down before packing them to prevent spoilage.
Note: The storage of Pu'er tea is different from other types of tea. Because Pu'er tea requires moisture in the air to continue fermenting, it should not be stored in a sealed container. It is best to store it in a clay jar or a Yixing clay pot, and place it in a well-ventilated indoor area. Additionally, pressed tea bricks or tuo tea should be broken apart before storage.