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Processing method of green tea

A processing method and green tea technology, applied in the green tea processing field, can solve the problems of different sizes of tea leaves, mixed mixing, poor processing quality, etc.

Inactive Publication Date: 2016-04-20
GUANGXI ZHAOPING NINGXIANGCUI TEA FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processing of existing green tea is mainly done by hand and simple machine processing. Manually uses wok as the processing equipment, and the frying master completes the greening and drying based on experience. The technical requirements for the frying master are relatively high, and the processing efficiency is low, so it cannot be mass-produced processing
Simple machining is an automated processing method that overcomes manual deficiencies, but because it completes all the processes in the flat tea frying machine at one time, the processed tea leaves are astringent, and tea leaves of different sizes cannot be separated. The processed tea leaves are of different sizes, mixed together, and the processing quality is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Picking: pick fresh leaves of tea trees with one bud and three leaves or one bud and four leaves as raw materials, and the buds and leaves are required to be complete, free of disease and pests, and purple leaves;

[0020] 2) Withering: The tea leaves are subjected to vacuum anaerobic treatment, the vacuum degree is 0.0-0.05MPa, the temperature of vacuum anaerobic treatment is 22-28°C, and the time is 6-8 hours; then hot air withering, the hot air withering time is 4 -6 hours, the temperature is 25-28°C, and the wind speed is 1.5-3.5m / s;

[0021] 3) Fixing: Put the withered leaves obtained in step 2) into the fixing machine, and fix them at 220-240°C for 5-8 minutes;

[0022] 4) Cooling: Put the green leaves obtained in step 3) on the sieve for cooling, the cooling temperature is controlled at 18-19°C, the wind speed

[0023] 0.4-1.2m / s, cooling time is controlled within 6-8 hours;

[0024] 5) Kneading: Put the cool leaves in a kneading machine for 20-30 minutes; ...

Embodiment 2

[0029] 1) Picking: pick fresh leaves of tea trees with one bud and three leaves or one bud and four leaves as raw materials, and the buds and leaves are required to be complete, free of disease and pests, and purple leaves;

[0030] 2) Withering: The tea leaves are subjected to vacuum anaerobic treatment, the vacuum degree is 0.0MPa, the temperature of the vacuum anaerobic treatment is 22°C, and the time is 8 hours; then hot air withering, the time of hot air withering is 6 hours, and the temperature is 25°C , the wind speed is 1.5m / s;

[0031] 3) Fixing: put the withered leaves obtained in step 2) into the fixing machine, and fix them at 240°C for 5 minutes;

[0032] 4) Cooling: put the green leaves obtained in step 3) on the sieve for cooling, the cooling temperature is controlled at 19°C, the wind speed

[0033] 1.2m / s, the cooling time is controlled at 6 hours;

[0034] 5) Kneading: Put the cool leaves in a kneading machine for 20 minutes;

[0035] 6) Drying: Dry the ro...

Embodiment 3

[0039] 1) Picking: pick fresh leaves of tea trees with one bud and three leaves or one bud and four leaves as raw materials, and the buds and leaves are required to be complete, free of disease and pests, and purple leaves;

[0040] 2) Withering: The tea leaves are subjected to vacuum anaerobic treatment, the vacuum degree is 0.05MPa, the temperature of the vacuum anaerobic treatment is 28°C, and the time is 6 hours; then hot air withering is carried out, the time of hot air withering is 4 hours, and the temperature is 28°C , the wind speed is 3.5m / s;

[0041] 3) Fixing: Put the withered leaves obtained in step 2) into the fixing machine, and fix them at 220°C for 8 minutes;

[0042] 4) Cooling: Put the green leaves obtained in step 3) on the sieve for cooling, the cooling temperature is controlled at 18°C, the wind speed

[0043] 0.4m / s, the cooling time is controlled within 8 hours;

[0044] 5) Kneading: Put the cool leaves in a kneading machine for 30 minutes;

[0045] 6...

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PUM

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Abstract

The invention discloses a processing method of green tea. The method includes the steps of picking, withering, fixation, spreading and cooling, rolling, drying and packaging. Fresh leaves of tea trees with three leaves on one bud or four leaves on one bud are picked to serve as raw materials, vacuum anaerobic treatment is conducted on the tea leaves, hot wind withering is conducted, withered leaves are put into a fixation machine, the tea leaves are placed on a screen to be spread and cooled, the spread and cooled leaves are put into a rolling machine to be rolled, the rolled leaves are dried for 10-15 min at the temperature of 110-130 DEG C, the leaves are cooled to the normal temperature and dried for 20-25 min at the temperature of 80-100 DEG C, and the dried tea leaves are sealed, packaged, frozen and subjected to fragrance increase, and the finished product is obtained. The tea leaves processed through the method are firm in appearance, jade green in color and luster, stable in quality, durable in fragrance and thick and fresh in taste, and after the tea leaves are brewed into tea, the liquor color is transparent and bright, leaf bottoms are green and tender, and the taste is pure.

Description

technical field [0001] The invention belongs to the technical field of tea processing, and in particular relates to a processing method of green tea. Background technique [0002] Green tea is one of the main teas in China, and its average annual consumption ranks first among the six major teas in my country. Chinese green tea not only has high aroma and long taste, excellent quality and unique shape, but also contains tea polyphenols, amino acids, catechins, caffeine and other nutrients, which have special effects on anti-aging, anti-cancer, anti-cancer, and blood pressure reduction. It is beyond the reach of other teas. γ-aminobutyric acid tea (also known as GABA tea) is a new type of antihypertensive tea, which requires the content of γ-aminobutyric acid in the tea to reach 1.5mg / g or more. Numerous studies at home and abroad have shown that γ-aminobutyric acid tea not only has the effect of lowering blood pressure, but also has the effects of regulating the nervous sys...

Claims

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Application Information

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IPC IPC(8): A23F3/06
CPCA23F3/06
Inventor 邱军
Owner GUANGXI ZHAOPING NINGXIANGCUI TEA FACTORY
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