Tea leaf fixation method for small pot tea based on gas heating processing

A technology of tea and thermal method, applied in the field of green tea fixation of small pots of tea, can solve the problem of difficulty in ensuring the purity of aroma and taste, and achieve the effects of improving taste, improving quality of greening, and inhibiting enzymatic oxidation.

Pending Publication Date: 2021-03-09
TEA INST YUNNAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The drum fixing machine is a high-efficiency continuous fixing machine that mainly uses stir-frying and steaming. In the prior art, most of the tea leaves are quickly fixed by using a drum fixing machine. However, it is difficult to obtain tea leaves obtained by single fixing. Guarantee the purity of aroma and taste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for fixing green tea leaves in a small can of tea based on gas-heat processing, specifically comprising the following steps:

[0024] (1) Cleaning of tea leaves: Soak the fresh leaves in rice washing water, stir for 3 minutes at a speed of 50 r / min, ultrasonically oscillate for 2 minutes after the stirring is completed, then remove the fresh leaves and rinse them twice with clean water;

[0025] (2) Tea leaf spreading: Drain the cleaned tea leaves, spread the drained tea leaves on a bamboo plaque, and then place them in a ventilated place to avoid sunlight. The time is 18h;

[0026] (3) Tea greening: put the green tea leaves into the roller fixing machine, control the finishing temperature at the front and middle part of the drum to be 110°C, the finishing temperature at the rear of the drum is 85°C, and the tea stay time is 5min;

[0027] (4) Tea repairing: heat the pot-type greening machine to 170°C, apply a layer of tea oil evenly to the pot, put the tea le...

Embodiment 2

[0029] A method for fixing green tea leaves in a small can of tea based on gas-heat processing, specifically comprising the following steps:

[0030] (1) Cleaning of tea leaves: Soak the fresh leaves in rice washing water, stir for 3 minutes at a speed of 50 r / min, ultrasonically oscillate for 2 minutes after the stirring is completed, then remove the fresh leaves and rinse them twice with clean water;

[0031] (2) Tea leaf spreading: Drain the cleaned tea leaves, spread the drained tea leaves on a bamboo plaque, and then place them in a ventilated place to avoid sunlight. The time is 20h;

[0032] (3) Tea greening: put the green tea leaves into the roller fixing machine, control the finishing temperature at the front and middle part of the drum to be 120°C, the finishing temperature at the rear of the drum to be 85°C, and the retention time of the tea leaves to be 5min;

[0033] (4) Tea repair: heat the pot-type greening machine to 170°C, apply a layer of tea oil evenly to t...

Embodiment 3

[0035] A method for fixing green tea leaves in a small can of tea based on gas-heat processing, specifically comprising the following steps:

[0036] (1) Cleaning of tea leaves: Soak the fresh leaves in rice washing water, stir for 4 minutes at a speed of 60 r / min, ultrasonically oscillate for 3 minutes after the stirring is completed, then remove the fresh leaves and rinse them with clean water for 3 times;

[0037] (2) Tea leaf spreading: Drain the cleaned tea leaves, spread the drained tea leaves on a bamboo plaque, and then place them in a ventilated place to avoid sunlight. The time is 20h;

[0038] (3) Tea greening: put the green tea leaves into the roller fixing machine, control the finishing temperature at the front and middle part of the drum to be 120°C, the finishing temperature at the rear of the drum to be 85°C, and the retention time of the tea leaves to be 5min;

[0039] (4) Tea repair: heat the pot-type greening machine to 170°C, apply a layer of tea oil evenl...

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Abstract

The invention discloses a tea leaf fixation method for small pot tea based on gas heating processing in the technical field of tea leaf fixation. The tea leaf fixation method comprises the following steps: (1) cleaning tea leaves; (2) tedding the tea leaves; (3) performing fixation on the tea leaves; and (4) supplementary fixation on the tea leaves. In the method, fresh leaves are soaked in rice washing water, and the rice washing water is weakly acidic, can decompose pesticides remaining in the tea leaves and improve safety of the tea leaves. According to the method, roller fixation and pot fixation are combined, after roller fixation is completed, high-temperature pot fixation is utilized again, activity of oxidase in fresh leaves can be rapidly destroyed and passivated, and enzymatic oxidation of tea polyphenol and the like is inhibited. Meanwhile, tea oil is uniformly smeared in the pot, so that the tea leaves are prevented from being directly burnt due to over-high temperature, fixation quality is improved, fragrance emitted by the tea oil can reduce green odor generated by fixation, and fragrance of the tea leaves after fixation can be further improved.

Description

technical field [0001] The invention relates to the technical field of green tea removal, in particular to a small pot tea green removal method based on gas-heat processing. Background technique [0002] Tea originated in China, and tea was first used as a sacrifice. However, it has been used as a vegetable by people since the late Spring and Autumn Period. It was developed into a medicinal drink in the middle of the Western Han Dynasty, and it was developed into a high-grade court drink in the late Western Han Dynasty. It was after the Western Jin Dynasty that it became popular among the people as an ordinary drink. The earliest relic of artificial tea plantation was found in the Tianluoshan site in Yuyao, Zhejiang Province, which has a history of more than 6,000 years. Tea drinking originated in China. Tea can be drunk directly with boiling water, and is divided into six categories according to the variety, production method and product shape. Harvested according to the...

Claims

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Application Information

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IPC IPC(8): A23F3/06
CPCA23F3/06
Inventor 马玲陈玫罗琼仙杨毅坚陈继伟陈红伟陈春林宁功伟孙承冕张文云张建伟杨方伟
Owner TEA INST YUNNAN ACADEMY OF AGRI SCI
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