According to the different objects and the amount of Chinese green tea owned and preserved, the preservation and storage methods of Chinese green tea are mainly divided into professional and household categories. Professional preservation is mainly for tea merchants to preserve their tea products, and the family is mainly for the preservation of a small amount of Chinese green tea. There are three professional preservation methods for Chinese green tea:
One is the lime block preservation method. The quicklime block is packed in a bag made of white fine cloth. Put Chinese green tea in a white cotton paper bag, coat a kraft paper bag, and then wash and dry the small-mouth pottery jar, under the white paper, place the Chinese green tea tea bag in the small-mouth pottery jar, with one or two lime bags embedded in the middle. Seal the altar mouth with several layers of grass, and finally use bricks or thick wood plate to compact it to reduce the amount of air exchange. After that, the preservation conditions should be checked frequently, and the lime should be replaced in time after deliquescent.
The second is the carbon storage method. The operation method is basically the same as the lime block preservation method. The material used is only charcoal after extinguishing, and the tea utensils can be replaced with crocks or small tin buckets. The capacity of charcoal bags and Chinese green tea tea bags can increase or decrease depending on the size of the container.
The third is the Chinese green tea cold storage method. Dry tea leaves with water vapor, the water content is between 3 and 5%, not more than 6%. Green tea leaves are packed in aluminum-plated composite bags, heat-sealed, and the air in the bags is evacuated with a breathing aspirator. At the same time, nitrogen is flushed, sealed with a sealing sticker, placed in the tea box, and then sent to a low-temperature refrigerator for storage. This method is the best tea preservation method under the current technological level. Large storage volume and long time.