Do tea leaves need to be vacuumed

Whether tea needs to be vacuumed depends on the type of tea and storage requirements. Some tea leaves require vacuuming, while others do not. Green tea, yellow tea and other unfermented or slightly fermented tea leaves are prone to oxidation and deterioration. Vacuum pumping can effectively isolate oxygen and extend the shelf life. This type of tea is usually recommended to be consumed as soon as possible after opening. If long-term storage is needed, vacuum pumping and refrigeration are more effective. Vacuum packaging can prevent tea from absorbing odors in the environment and maintain its original aroma. Vacuum state can prevent tea from getting damp and moldy, especially suitable for areas with high humidity. Partial vacuum packaging will be filled with nitrogen to further slow down the oxidation rate. Black tea, black tea and other fully fermented or post fermented tea leaves have low sensitivity to oxygen and usually do not require vacuum storage. This type of tea will continue to transform under appropriate temperature and humidity, and excessive isolation from the air can actually affect its quality development. Traditional Pu erh tea cakes and other compressed teas require contact with air to complete post fermentation, and vacuuming will interrupt this process. Some old teas may develop unique flavors when stored naturally, and vacuuming may alter their aging trajectory. If loose black tea is consumed in a short period of time, ordinary sealed cans can meet the demand. When storing tea leaves, in addition to considering vacuum packaging, attention should also be paid to avoiding light and moisture. Regardless of whether vacuum is applied, tea should be stored in a cool and dry place, away from high temperatures and direct sunlight. Different types of tea have different requirements for storage conditions, and it is recommended to choose the appropriate method based on the specific characteristics of the tea. Regularly check the condition of tea leaves, and stop drinking immediately if there is any odor or mold. Reasonable storage can maximize the preservation of tea flavor and enhance the drinking experience.