Processing process of green tea capable of being brewed by cold water

Abstract

The invention discloses a processing process of green tea capable of being brewed by cold water. The processing process comprises the steps of fresh leaf picking, low-temperature quick freezing, microwave thawing water removing, first-step roasting leaf stir-frying, twisting, cooling, piling slight fermentation and drying, wherein in the low-temperature quick freezing step, picked fresh leaves are fast conveyed into a freezer and are fast frozen for 24 to 48 hours at -20 DEG C; in the microwave thawing water removing step, the fast frozen fresh leaves are flatly paved onto a conveying belt of a microwave water removing machine, the thickness is 2 to 4cm, and the microwave water removing machine is started for performing microwave water removing for 5 to 8 minutes until the water content of the fresh leaves is 70 to 75 percent; and in the piling slight fermentation step, the cooled twisted leaves are firstly subjected to piling, the weight in each pile is 30kg, each tea pile is sealed and covered by preservative films after the piling, and the twisted leaves are subjected to slight fermentation for 1 hours in sealed environment. The processing process has the advantages that the tippy quantity of the prepared tea is great, the taste is mellow, the mouth feeling is good, in addition, the cell fragmentation degree is high, and the fragmentation is sufficient, so the green tea is suitable for being brewed by the cold water; and the processing process is simple.

Description

technical field

[0001] The invention relates to a processing technology of tea leaves, in particular to a processing technology of cold-water brewable green tea. Background technique

[0002] Green tea is non-fermented tea with high content of tea polyphenols and caffeine. In addition to the effects of relieving heat, refreshing and nourishing the mind, it also has special effects on anti-aging, anti-cancer, sterilization, anti-inflammatory, fat-lowering and weight-loss. Therefore, green tea is loved by consumers in general. Green tea is originally produced in China, and its basic process includes: picking fresh leaves - spreading the green tea - finishing - rolling - drying.

[0003] In recent years, with the continuous growth of consumer demand for cold drink products, the way of drinking tea with cold water instead of hot water has become more and more popular. However, in the traditional green tea processing, the tea leaves are all frozen after finishing, so that the t...