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Withering technology of tea leaves

A tea and withering technology, which is applied in the field of tea withering technology, can solve the problems that the technology is not easy to control, and the withering technology is easily affected by natural conditions, so as to achieve the effects of increasing cell osmotic pressure, accelerating water loss, and increasing internal and external osmotic pressure

Inactive Publication Date: 2017-05-31
GUIZHOU PROVINCE ZHENGAN COUNTY YIREN TEA IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned technical problems, the present invention provides a tea withering process to overcome the technical problems that the existing withering process is easily affected by natural conditions and the process is difficult to control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: the withering process of tealeaves, comprises the following steps:

[0020] a. Burn boiling water, blend with brine with a mass concentration of 26%, cool to 35-40°C, and set aside;

[0021] b. Initial withering: spread the picked fresh leaves on the withering curtain with a thickness of 3-4cm, and then evenly spray the salt water in step a on the surface of the tea leaves at a spraying rate of 250-300mL / m 2 After the spraying is completed, turn the tea leaves so that the tea leaves are evenly hung with salt water, spread them for 20 minutes, and turn them 2 or 3 times in the middle; each time you turn them, use a thin stick with a diameter of 0.3-0.5cm to form a number on one end of the withering curtain. 6 Continuously slide to the other end of the withering curtain, and then continuously slide to one end of the withering curtain in the same way from the other end of the withering curtain;

[0022] c. Last withering: use bamboo mat, spread moist rice pa...

Embodiment 2

[0023] Embodiment 2: the withering process of tealeaves, comprises the following steps:

[0024] a. Burn boiling water, blend with brine with a mass concentration of 23%, cool to 35-40°C, and set aside;

[0025] b. Initial withering: spread the picked fresh leaves on the withering curtain with a thickness of 3-4cm, and then evenly spray the salt water in step a on the surface of the tea leaves at a spraying rate of 250-300mL / m 2 After spraying, turn the tea leaves so that the tea leaves are evenly hung with salt water, spread them for 25 minutes, and turn them 2 or 3 times in the middle; each time you turn them, use a thin stick with a diameter of 0.3 to 0.5 cm, and put a number on one end of the withering curtain. 6 Continuously slide to the other end of the withering curtain, and then continuously slide to one end of the withering curtain in the same way from the other end of the withering curtain;

[0026] c. Last withering: use bamboo mat, spread moist rice paper on the b...

Embodiment 3

[0027] Embodiment 3: the withering process of tealeaves, comprises the following steps:

[0028] a. Burn boiling water, blend with brine with a mass concentration of 25%, cool to 35-40°C, and set aside;

[0029] b. Initial withering: spread the picked fresh leaves on the withering curtain with a thickness of 3-4cm, and then evenly spray the salt water in step a on the surface of the tea leaves at a spraying rate of 250-300mL / m 2 After the spraying is completed, turn the tea leaves so that the tea leaves are evenly hung with salt water, spread for 20 minutes, and turn 2 or 3 times in the middle;

[0030] c. Last withering: use bamboo mat, spread moist rice paper on the bamboo mat, evenly sprinkle the first withered tea leaves on the rice paper, the thickness of the spreading is within 3-4cm, and then spread dry rice paper on the surface of the tea leaves, after drying A layer of moist rice paper is placed on the surface of the rice paper; then the bamboo mat on which the tea l...

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Abstract

The invention discloses a withering technology of tea leaves in the technical field of tea leaf processing. The withering technology comprises the following steps of spreading fresh leaves on a withering curtain in a manner that the thickness of the spread fresh leaves is within the range of 3-4cm, uniformly sprinkling cooled salt water of which the mass concentration is 23-26% onto the surfaces of the tea leaves, wherein the sprinkling quantity is 250-300mL / m2, spreading the fresh leaves for 20-25min, and turning the fresh leaves two or three times during spreading the fresh leaves; and utilizing a bamboo mat, laying humid Xuan paper on the bamboo mat, uniformly sprinkling and putting the tea leaves withered for the first time on the Xuan paper, wherein the sprinkling and putting thickness of the tea leaves is within the range of 3-4cm, then laying dried Xuan paper on the surfaces of the tea leaves, then performing high-temperature steam heating on the bamboo mat on which the tea leaves are laid, after 10-15s, stopping heating, performing cooling to room temperature, and then performing the next working procedure of the tea leaf processing. According to the withering technology disclosed by the invention, the defects that the withering process and the withering degree are not liable to control in natural withering are overcome, the defect that the quality of tea leaves is reduced in thermal wind withering is overcome, and the withering technology has the beneficial effects that surfaces of withered leaves are oily and glossy, green grass smell is notably reduced, and the fragrance is rich.

Description

technical field [0001] The invention relates to the technical field of tea processing, in particular to a tea withering process. Background technique [0002] There are six major types of tea in China, including white tea, black tea, yellow tea, green tea, dark tea and green tea, which is also called oolong tea. Withering is the first process of black tea, white tea and green tea. The tea leaves are evenly spread under certain temperature and humidity conditions, which moderately promotes the activity of fresh leaf enzymes, causes moderate physical and chemical changes in the contents, emits part of the water, causes the stems and leaves to wilt, dark green in color, and loses the grassy smell. The length and degree of withering will have a certain impact on the quality of tea. [0003] The traditional tea withering process is to thinly spread the tea leaves on a withering trough or a withering curtain for natural withering or hot air withering. Natural withering includes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/06
CPCA23F3/06
Inventor 王怡冯泽敏冯俊鑫
Owner GUIZHOU PROVINCE ZHENGAN COUNTY YIREN TEA IND CO LTD
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