Black tea processing technology

Abstract

The invention discloses a black tea processing technology. The black tea processing technology includes the steps that firstly, after being spread and dried in the sun, picked fresh tea leaves are frozen for 25-30 days under the temperature condition of -20 DEG C to -15 DEG C; secondly, the frozen tea leaves are withered after being unfrozen, and according to withering, the frozen tea leaves are flatly laid on white cloth, subjected to sunlight withering and stirred one time every 10-20 min; thirdly, the withered tea leaves are rinsed, dehydrated, dried in air and twisted; fourthly, the twisted tea leaf raw materials are subjected to film covering fermentation, fermentation temperature is controlled between 35 DEG C and 40 DEG C, and fermentation is performed for 150-190 min; fifthly, the tea leaf raw materials are dried till the water content of the tea leaf raw materials is 5-7%, and then finished black tea products can be made; the cell membrane permeability is increased due to freezing, and therefore enzymatic oxidation of polyphenol substances can be promoted, the content of theaflavin and thearubigins of black tea can be remarkably increased due to freezing, and tea soup is red and bright and tastes sweet and mellow.

Description

technical field

[0001] The invention belongs to the technical field of tea processing, and in particular relates to a black tea processing technology. Background technique

[0002] Black tea belongs to the category of fully fermented tea. It is made from the buds and leaves of tea trees and is refined through typical processes such as withering, rolling, fermentation and drying. The color of the dried tea and the brewed tea are mainly red, hence the name. black tea.

[0003] Strictly speaking, black tea does not refer to a variety of tea, but a processing technology of tea. The aroma of black tea produced by traditional black tea processing technology is not strong enough, and the taste needs to be improved. SUMMARY OF THE INVENTION

[0004] In order to solve the above technical problems, the present invention provides a black tea processing technology with pure black tea aroma and sweet taste.

[0005] The purpose of this invention is to realize through the following t...