Composite withering process of Gongfu black tea

Abstract

The invention discloses a composite withering process for congou black tea. The technical process is as follows: (1), picking fresh and no-damage fresh tea tree leaves, placing on a withering frame, wherein withering thickness is 1.0cm-3.0cm, withering time is 1.5 hours-2.0 hours, and the fresh tea tree leaves are turned over for twice to three times in the process; (2), carrying out normal-temperature normal-pressure treatment by adopting a famous high-quality tea reciprocation tea strip tidying machine, wherein the diameter of a tea strip tidying rod is 3-4cm, the tea strip tidying temperature is 20-25 DEG C, and the tea strip tidying time is 10-15 minutes; (3), carrying out temperature and pressure increasing treatment by adopting the famous high-quality tea reciprocation tea strip tidying machine, wherein the diameter of a tea strip tidying rod is 6-7cm, the tea strip tidying temperature is 40-45 DEG C, and the tea strip tidying time is 8-12 minutes; and (4), continuously withering the fresh leaves by the withering frame after carrying out the normal-temperature normal-pressure treatment and the temperature and pressure increasing treatment by the famous high-quality tea reciprocation tea strip tidying machine, wherein withering thickness is 1.0cm-3.0cm, withering time is 5-7 hours, and the fresh leaves are turned over for twice to three times in the process, and moisture content of the withered fresh leaves is lowered to 56%-63%. Compared with the conventional withering process, fermenting time is shortened by 6-10 hours, and the sensory quality total points of the composite withering process are 1-5 points higher. According to the invention, the composite withering technology is adopted, so that fresh leaf water loss and conversion of substances contained in the fresh leaves are quickened, the cell damage percentage of the fresh tea tree leaves is improved, and therefore, withering time is shortened and quality of the congou black tea is improved.

Description

technical field [0001] The invention belongs to the field of tea processing, in particular to a compound withering process of Gongfu black tea. Background technique [0002] Withering is the first process in the primary processing of Gongfu black tea, and it is also the basic process for forming the quality of Gongfu black tea. Withering has both a physical dehydration effect and a process of chemical change of the contained substances. The withering of fresh tea leaves mainly occurs in the following two aspects: one is to evaporate part of the water, reduce the tension of the fresh tea leaves, make the leaves and stems from brittle to soft, increase the toughness of the buds and leaves, and facilitate rolling into strips; The loss of water causes a series of chemical changes in the substances contained in the tea tips, which lays the foundation for the material changes to form the specific quality of black tea color, aroma and taste. The control of the degree of withering...

AI Technical Summary

Problems solved by technology

Therefore, withering must be moderate, both excessive and insufficient are detrimental to the quality of Maocha