Green tea prepared by vacuum freeze drying and method

The invention relates to the technical field of green tea processing, in particular to vacuum freeze-drying green tea and a method thereof.Shi-qian moss tea leaves are subjected to tedding, fixation and rolling treatment and then subjected to vacuum freeze drying till the water content is smaller than or equal to 7% to be prepared into the green tea, so that a large amount of EGCG in the Shi-qian moss tea leaves is reserved, the tea polyphenol content is promoted to be increased, and the green tea has a good taste. The quality of a green tea product prepared by taking the Shi-qian moss tea leaves as the raw material is improved, and the market competitiveness of the Shi-qian moss tea green tea product is improved. 本发明涉及绿茶加工技术领域，尤其是一种真空冷冻干燥制绿茶及方法，将石阡苔茶茶青经摊青-杀青-揉捻处理后，采用真空冷冻干燥至含水量≤7％制备成绿茶，使得石阡苔茶茶青中EGCG得到大量保留，且促使茶多酚含量得到提高，改善了以石阡苔茶茶青为原料制备绿茶产品的品质，提高了石阡苔茶绿茶产品市场竞争力。