乌龙茶迅速脱水干燥保香工艺技术研究

A research on fast dehydration-drying and fragrant-keeping technology of Oolong tea

采用真空冷冻干燥机进行乌龙茶干燥工艺试验,揉捻叶不经冻结,直接在干燥机内加低温干燥。该方法与常规的真空冷冻干燥工艺相比,大大减少了干燥所需的时间,而且乌龙茶产品香气鲜灵浓郁,汤色黄绿明亮,滋味醇厚芬芳,综合品质明显超过传统热风干燥的乌龙茶品质。这是一种既能提高乌龙茶品质,又能较快干燥的新的工艺方法。

To use vacuum refrigeration drier for an experiment of Oolong tea drying, in which, the tea leaves were dehydrated within drier in low temperature. Comparing with regular technology, this treatment method can reduce the time for drying and the tea＇s fragrant can be kept with the features of yellow tea soup, pure-fragrant smell and excellent integrated quality. This is a new technology which can boost the quality of Oolong tea and faster drying as well.