Method for fermenting old leaves of Kongfu black tea

Abstract

The invention discloses a method for fermenting old leaves of Kongfu black tea, which comprises the steps of: taking middle and small-leaf dark brownish green, i.e. one bud has 3-4 leaves; thinly tedding the dark brownish green in an environment with a temperature of 20-30 DEG C and humidity of 70-90%, wherein 2-3 times of flipping is carried out during the process of tedding; fully filling withered leaves in a rolling bucket, rolling at a revolution speed of 35-45 r / min for 50-60 minutes without pressing, then lightly pressing to 1 / 4-1 / 3 of the rolling bucket, and alternating for 10-20 minutes, wherein the time for whole rolling is 75-100 minutes until 85-95% of the rolled leaves become orange and yellow, and the rope-forming rate is 80-90%; and putting the rolled leaves in a fermenting disc, wherein the thickness of piled leaves is 10-12 cm, the environment has a temperature of 20-30 DEG C and humidity of 90-95%, 3-6 times of flipping is carried out during the process until 90-95% of the rolled leaves become yellowish red, have brightly colored luster, and are fragrant and sweet or fruity. The method for fermenting the old leaves of the Kongfu black tea lowers breaking and crushing rate and improves completeness of bud leaves, and the even fermentation is guaranteed.

Description

technical field [0001] The invention relates to a tea processing method, in particular to a method for fermenting old leaves. [0002] Background technique [0003] At present, the processing technology of Gongfu black tea is mainly divided into withering→kneading→fermentation→drying. That is, the green tea is withered in the withering tank and then rolled. The current green tea rolling machine is mainly used for rolling. Generally, the time for rolling without pressure is 5min-10min. , and then pressurize according to the principle of light, heavy and light, and the whole kneading time is 40min-60min. During fermentation, the room temperature of the fermentation room is 22°C-26°C, the relative humidity is ≥95%, the air is circulated, and the leaves on the fermentation plate are 8cm-12cm, and the thickness is uniform. When the green grass smell disappears, the scent of flowers and fruits appears, and the leaf color is yellow and red, which is moderate. Although adopting t...

AI Technical Summary

Problems solved by technology

Although adopting the above process technology can meet the processing requirements of Gongfu black tea whose tenderness of tea green raw material is more than 1 bud and 2 leaves, when the tenderness of tea green raw material is at or below 1 bud and 3 leaves, the existing technology will be used when rolling Greatly increase the breakage rate, and the degree of fermentation of stems and leaves will be different during fermentation at the same time, and the fermentation will not be uniform, and the phenomenon of excessive fermentation or blueness will be highlighted