Oolong tea indoor sun-drying processing technique

A processing technology and technology of oolong tea, applied in the directions of tea treatment before extraction, climate change adaptation, etc., can solve the problems of dust and dirt on leaves, difficulty in grasping the degree of drying, uneven drying, etc., so as to achieve uniform drying quality, Reduce the chance of uneven light and ventilation, and achieve uniform drying effect

Active Publication Date: 2016-10-26
黄山职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional drying process is mostly carried out by tea farmers directly in the open space that can be exposed to sunlight. This will not only make the leaves stained with dust and impurities, but also make it difficult to control the degree of drying, resulting in uneven drying.

Method used

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  • Oolong tea indoor sun-drying processing technique
  • Oolong tea indoor sun-drying processing technique
  • Oolong tea indoor sun-drying processing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Choose fresh oolong tea leaves with 2 to 3 leaves in small and medium-sized openings for picking, and set up bamboo mats at a height of 0.5m above the ground according to the daily output, and spread the leaves according to the amount of 0.6kg / m 2 Spread the fresh leaves, and set up a sunshade net with a shading rate of 75% at 2 meters above the bamboo mat. The shading rate can be adjusted according to the intensity of sunlight and the degree of drying of the tea leaves. The tea leaves are lightly stirred every 12 minutes to Ensure that the degree of drying of tea leaves is uniform. Dry until the weight loss rate of the tea leaves is 4%, and the tea leaves are moved into a ventilated room to dry indoors for 40 minutes. Use the green shaker to shake the blue and green and let it stand to dry. The first shake is set at a speed of 10r / min, which lasts 3min, and the green is dried for 1h after shaking; the second shake is set at a speed of 15r / min, which lasts 5min. Dry th...

Embodiment 2

[0043] Choose fresh oolong tea leaves with 2 to 3 small and medium leaves for picking, and set up bamboo mats at a height of 0.8m above the ground according to the daily output, and spread the leaves according to the amount of 0.7kg / m 2 Spread the fresh leaves, set up a sunshade net with a shading rate of 78% 2 meters above the bamboo mat, and lightly turn the tea leaves every 13 minutes to ensure that the tea leaves are evenly dried. Dry until the moisture content of the tea leaves is 5%, and move the tea leaves indoors to dry for 45 minutes. Use the green shaker to shake the blue and green and let it stand to dry. The first shake is set at a speed of 11r / min, which lasts 2min, and after shaking the green is dried for 1.5h; the second shake is set at a speed of 16r / min, which lasts 5min. After airing blue and green 1.5h; The third airing blue and green setting speed 20r / min, lasted 12min, shake green and blue and then air blue and blue 8h, spread leaf thickness 2.5cm when air...

Embodiment 3

[0048] Choose fresh oolong tea leaves with 2 to 3 leaves in small and medium-sized openings for picking, set up bamboo mats at a height of 1m above the ground according to the daily output, and spread the leaves at a rate of 0.8kg / m 2 Spread the fresh leaves, set up a sunshade net with a shading rate of 80% at 2 meters above the bamboo mat, and lightly turn the tea leaves every 15 minutes to ensure that the degree of greening of the tea leaves is uniform. Dry until the water content of the tea leaves is 5%, and move the tea leaves indoors to dry for 50 minutes. Use the green shaker to shake the blue and green and let it stand to dry. The first shake is set at a speed of 10r / min, which lasts 3min, and then aired for 2h after shaking; the second shake is set at a speed of 14r / min, which lasts 6min. Dry blue and green for 2 hours; set the rotation speed of 19r / min for the third time, and last for 9 minutes, shake blue and green leaves for 9 hours, and spread the leaf thickness of...

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Abstract

The invention belongs to the technical field of tea processing, particularly relates to an oolong tea indoor sun-drying processing technique and aims to provide an oolong tea processing technique adopting indoor sun-drying. The technique includes steps: picking fresh leaves; indoors sun-drying; shaking and airing; frying; removing red edges and spreading to retain moisture; rolling and fermenting for the second time; drying. The technique is characterized in that according to the indoor sun-drying processing technique, a bamboo mat needs to be set up at a position of 0.5-1 m higher than the ground according to daily yield, a sunshade net of 75-80% in sunshade rate needs to be set up at a position of 2 m above the bamboo mat, the tea leaves are spread on the bamboo mat according to leaf spreading quantity, the tea leaves need to be slightly turned and stirred by hands every other 12-15 min in the process of sun-drying, and the tea leaves are moved into a room for spreading and airing for 40-50 min when weight reduction rate of the lea leaves is 4-5% through sun-drying. The processing technique is clean, sanitary, simple, convenient and efficient, and tea leaves obtained by the technique are uniform in tea color.

Description

technical field [0001] The invention belongs to the technical field of tea processing, and in particular relates to an indoor drying process of oolong tea. Background technique [0002] The origin of my country's tea culture can be traced back thousands of years ago. The long history of drinking tea has formed a traditional tea processing method. Among them, the semi-fermented processing method of oolong tea has distinctive characteristics. Cholesterenone, folic acid, inositol, pantothenic acid and amino acids contained in tea are beneficial to human health, but the processing technology of tea will affect the final taste and quality of tea. [0003] Drying of tea leaves is an important link in forming the quality of oolong tea leaves. Its purpose is to use the heat energy of sunlight and blowing to wither to evaporate part of the water in fresh leaves; to make the leaves undergo chemical changes under the action of light and heat to decompose chlorophyll. The degree of sun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/06A23F3/12A23F3/08
CPCA23F3/06A23F3/08A23F3/12Y02A40/90
Inventor 邵鑫吴惠青徐丽萍王士有
Owner 黄山职业技术学院
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