The traditional household storage method generally adopts lime tube drying method, which has good effect. The fried Longjing tea is easy to deteriorate due to moisture, so it should be wrapped in paper in time, with a package of 0.5 kg, and placed in a jar with massive lime (lime that has not been weathered by moisture absorption) at the bottom, and sealed for collection. After being stored properly for about 0.5- 1 month, Longjing tea is more fragrant, fresher, more mellow and more refreshing. Longjing tea, which is kept dry, can still maintain the quality of green, fragrant and alcohol after being stored for one year.
2. Carbon storage methods
The specific method is similar to the storage method of quicklime, but the difference is that charcoal is used instead of quicklime as a desiccant, that is, 1 kg charcoal is put into a cloth bag and replaced once every two months. If the charcoal absorbs moisture, it should be burned red, cooled and put into cloth bags, each bag weighs about1kg; Take out charcoal every month or two and dry it before using it.
3. Storage methods of plastic bags and aluminum foil bags
It is best to choose a sealed plastic bag, which is thick and dense and good for food. Do not use odorous or recycled plastic bags. The air in the tea bag should be squeezed out as much as possible, and it is best to cover it with a second plastic bag. Tea leaves packed in transparent plastic bags are not suitable for sunlight. The principle of packaging tea with aluminum foil is similar to that of plastic bag. In addition, the bought tea leaves are all bagged, sealed and put into the refrigerator, and then brewed in batches, which reduces the chance of contact with air after the tea leaves are opened and delays the occurrence of quality deterioration.
4. Storage method of metal cans
You can choose tin cans, stainless steel cans or dense tin cans. If it's a new can, or a can that has been stored with other items before, and it smells, you can first put a little tea wood in the can, cover it, shake it up, down, left and right, and then discard it, or bake the tin can with fire to remove the odor. There are double-layer stainless steel tea cans on the market, which are simple and practical. It would be better if you could put the tea in a clean and odorless plastic bag, then put it in a jar and cover it with tape. Metal cans containing tea should be placed in a cool place, not in direct sunlight, smelly, humid and hot places. In this way, the tin can is not easy to rust, and it can also slow down the aging and deterioration of tea. In addition, the tin can is made of dense material, which has good moisture-proof, oxidation-proof, light-blocking and odor-proof effects.
5, low temperature storage method
The reason why West Lake Longjing has magical health-preserving effect is mainly because West Lake Longjing tea contains many effective chemical components for human body. But these components are easy to react and decompose at a slightly higher temperature. Therefore, the temperature of West Lake Longjing tea must be lowered and the nutrients in West Lake Longjing tea must be decomposed during storage, so as to maintain the color, aroma and taste of West Lake Longjing tea. According to the research, the best storage temperature of West Lake Longjing is 0 ℃~ 10℃ ... The storage environment of tea leaves is kept below 5℃, that is, the tea leaves are stored in refrigerator or freezer, and if they are stored at home, the refrigerator is used. This method should pay attention to:
(1) If the storage period is less than six months, it is most economical and effective to keep the refrigeration temperature at 0 ~ 5℃. If the storage period exceeds half a year, it is best to freeze (-10℃ to-18℃).
(2) Tea is easy to absorb odor and moisture, so the refrigerator for storing West Lake Longjing tea must be cleaned frequently without odor. If conditions permit, you can set aside a part of the refrigerator to preserve West Lake Longjing tea. West Lake Longjing tea packaging bag is best covered with 1~2 high density polyethylene bag.
(3) The air circulation in the cold storage (freezing) is good, and the cooling effect is achieved.
(4) When buying a large amount of tea at a time, you should first pack it in small bags (cans), then put it in a refrigerated (frozen) warehouse, and take out the required amount for brewing each time. The same bag of tea should not be frozen and thawed repeatedly.
(5) When the tea leaves are taken out of the cold storage (freezing), the temperature of the tea leaves in the teapot should be raised to near room temperature before the tea leaves can be taken out; Otherwise, suddenly opening the teapot will easily condense water, increase water content, and accelerate the deterioration of non-soaked tea.