Method for making high-fermentation elder leaf black tea

A production method and fermentation type technology, applied in the direction of tea treatment before extraction, etc., can solve problems such as low quality of tea leaves, and achieve the effects of oily color, obvious sweetness, and tight and even strips.

Inactive Publication Date: 2017-02-22
武夷学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the old leaves of Wuyi rock tea tree contain a lot of beneficial substances. However, the traditional rock tea process (semi-fermentation process) for production cannot effectively release or oxidize the beneficial substances in the old leaves, resulting in low quality tea, etc.
[0003] Black tea is a kind of fully fermented tea. The present invention utilizes the old leaves of Wuyi rock tea tree, adopts a full fermentation mode, and highly fe...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for making high fermented old leaf black tea, comprising the following steps:

[0016] (1) Picking of fresh leaves: pick the leaves below the fourth leaf of Wuyi rock tea 'Dahongpao' tea tree as raw materials;

[0017] (2) Secondary withering: spread the picked tea leaves on bamboo plaques with a thickness of 3 cm, and place them indoors for the first withering. The withering temperature is 35°C, the air humidity is 70%, and the oxygen supply in the space is 1.0L / min per cubic meter, and the withering time is 8h; after the first withering, the tea leaves are gently stirred to make them fully mixed, and then spread on the bamboo plaque again, with a thickness of 3cm, and placed indoors for the second Secondary withering, the withering temperature is 30°C, the air humidity is 80%, the space oxygen supply is 1.0 L / min per cubic meter, and the withering time is 10h;

[0018] (3) Alternate operation of three times of rolling and three times of fermentation: put the...

Embodiment 2

[0022] A method for making high fermented old leaf black tea, comprising the following steps:

[0023] (1) Picking of fresh leaves: picking the leaves below the sixth leaf of Wuyi rock tea 'Narcissus' tea tree as raw materials;

[0024] (2) Second withering: spread the picked tea leaves on bamboo plaques with a thickness of 5 cm, and place them indoors for the first withering. The withering temperature is 30°C, the air humidity is 60%, and the oxygen supply in the space is 1.5L / min per cubic meter, the withering time is 10h; after the first withering, the tea leaves are gently stirred to make them fully mixed, and then spread on the bamboo plaque again with a thickness of 5cm, and placed indoors for the second Secondary withering, the withering temperature is 25°C, the air humidity is 70%, the space oxygen supply is 1.0 L / min per cubic meter, and the withering time is 12h;

[0025] (3) Alternate operation of three times of rolling and three times of fermentation: put the with...

Embodiment 3

[0029] A method for making high fermented old leaf black tea, comprising the following steps:

[0030] (1) Picking fresh leaves: Picking the leaves below the fifth leaf of Wuyi rock tea 'Cinnamon' tea tree as raw materials;

[0031] (2) Second withering: spread the picked tea leaves on bamboo plaques with a thickness of 4cm, and place them indoors for the first withering. The withering temperature is 32°C, the air humidity is 65%, and the oxygen supply in the space is 1.3L / min per cubic meter, the withering time is 9h; the tea leaves after the first withering are gently turned to make them fully mixed, and then spread on the bamboo plaque again with a thickness of 4cm, and placed indoors for the second Secondary withering, the withering temperature is 28°C, the air humidity is 75%, the space oxygen supply is 1.0 L / min per cubic meter, and the withering time is 11;

[0032](3) Alternate operation of three times of rolling and three times of fermentation: put the withered tea l...

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Abstract

The invention discloses a method for making high-fermentation elder leaf black tea. The method comprises the following steps: taking elder leaves of Wuyi rock tea trees as raw materials, picking fresh leaves, performing secondary wilting, performing alternative operations on three-time rolling and three-time fermentation, drying and the like. According to the invention, the unique rolling and wilting process is adopted, so that the elder leaf cells are uniformly and fully destroyed, and due to long-term fermentation, lots of substances contained in the elder leaves are fully oxidized and transformed, chemical changes of principle polyphenols and subsidiary transformation and accumulation of substances such as free amino acids, theanine, polysaccharides and the like are formed, the sufficiency and uniformity of tea leaf fermentation are effectively guaranteed, and the color, aroma, taste and shape of the tea leaves are improved, so that the made elder leaf black tea is tight and uniform in strip, oily in color, orange red and bright in soup, similar to dry aroma of longan, mellow in taste and obvious in sweetness after drinking tea.

Description

technical field [0001] The invention belongs to the field of black tea processing, and in particular relates to a method for making high-fermentation old-leaf black tea. Background technique [0002] Wuyi Mountain tea trees have been mainly used to make rock tea for a long time, and in the production process, tea greens with more than 4 leaves are generally used as the main raw material, and a large number of old leaves with less than 4 leaves are discarded. At the same time, the old leaves of Wuyi rock tea tree contain a lot of beneficial substances. However, the traditional rock tea process (semi-fermentation process) for production cannot effectively release or oxidize the beneficial substances in the old leaves, resulting in low quality tea, etc. . [0003] Black tea is a kind of fully fermented tea. The present invention utilizes the old leaves of Wuyi rock tea tree, adopts a full fermentation mode, and highly ferments the old leaves to effectively promote the release ...

Claims

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Application Information

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IPC IPC(8): A23F3/06A23F3/08
CPCA23F3/06A23F3/08
Inventor 贾小丽叶江华王飞权冯花
Owner 武夷学院
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