Composite withering process of Gongfu black tea

A technology of withering and crafting, which is applied in the field of compound withering technology of Gongfu black tea, which can solve the problems of unfavorable raw tea quality and other problems, and achieve the effects of accelerating the water loss of fresh leaves, shortening the time of withering treatment, and accelerating the transformation

Active Publication Date: 2016-04-20
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Pick 10kg of fresh tea tree leaves and place them on a withering rack, with a withering thickness of 2cm, withering time of 2 hours, and turning 3 times in the middle; using a famous tea reciprocating stripping machine for normal temperature and normal pressure treatment, the diameter of the stripping rod is 3cm, and the stripping temperature is 20 °C, The stripping time is 15 minutes; then the famous tea reciprocating stripping machine is used for heating and pressure treatment, the strip diameter is 6cm, the strip temperature is 40°C, and the strip preparation time is 10 minutes; the withering frame withering treatment is continued, and the withering thickness is 2cm. The withering time is 6.5 hours, and it is turned 3 times in the middle. After the withering, the water content of the fresh leaves is reduced to 61%, the leaf surface is dull, and turns from bright green to dark green. Slightly fragrant. Compared with the traditional withering method, the processing tim...

Embodiment 2

[0014] Pick 10kg of fresh tea tree leaves and place them on a withering rack, with a withering thickness of 1cm, withering time of 1.5 hours, and turning twice in the middle; using a famous tea reciprocating stripping machine for normal temperature and normal pressure treatment, the diameter of the stripping rod is 3cm, and the stripping temperature is 22 °C. The stripping time was 13 minutes; then the famous tea reciprocating stripping machine was used for heating and pressure treatment, the strip diameter was 7cm, the strip temperature was 42°C, and the strip preparation time was 8 minutes; the withering treatment was continued, and the withering thickness was 1cm. The withering time is 6 hours, and it is turned twice in the middle. After the withering, the water content of the fresh leaves drops to 60%, the leaves are dull, and the leaves are changed from bright green to dark green. Slightly fragrant. Compared with the traditional withering method, the processing time of th...

Embodiment 3

[0016] Pick 10kg of fresh tea leaves and place them on a withering rack, with a withering thickness of 3cm, withering time of 2 hours, and turning 3 times in the middle; the famous tea reciprocating stripping machine is used for normal temperature and normal pressure treatment, the diameter of the stripping rod is 4cm, and the stripping temperature is 24°C. The stripping time is 12 minutes; then the famous tea reciprocating stripping machine is used for heating and pressure treatment, the strip diameter is 7cm, the strip temperature is 40°C, and the strip preparation time is 10 minutes; the withering frame withering treatment is continued, and the withering thickness is 3cm. The withering time is 6 hours, and it is turned twice in the middle. After the withering, the water content of the fresh leaves is reduced to 61%, the leaves are dull, and the leaves are changed from bright green to dark green. Slightly fragrant. Compared with the traditional withering method, the processi...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23F3/06
Inventor 江和源张建勇江用文
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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