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Granular green tea processing method through combination of microwave drying of first-step roasting leaves and double-pot tea curling machine shaping

The technology of a double-pot Quhao machine and a processing method is applied in the direction of tea processing before extraction, which can solve the problems of high work efficiency and poor evenness of leaf picking by machine.

Inactive Publication Date: 2015-02-18
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Machine-picked production shows that the uniformity of machine-picked leaves is worse than that of hand-picked leaves, and there are more fragments or single leaves, but its work efficiency is much higher than that of hand-picked leaves.

Method used

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  • Granular green tea processing method through combination of microwave drying of first-step roasting leaves and double-pot tea curling machine shaping
  • Granular green tea processing method through combination of microwave drying of first-step roasting leaves and double-pot tea curling machine shaping
  • Granular green tea processing method through combination of microwave drying of first-step roasting leaves and double-pot tea curling machine shaping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Spread fresh leaves: Machine-harvested Longjing 43 tea tree fresh leaves are used as raw materials. The picking standard is two or three leaves per bud, and the proportion of fragmented leaves and single leaves is 30%. The fresh tea leaves are placed on the silage machine and spread out, the thickness of the leaves is 5cm, the time of spreading is 8h, and the moisture content drops to 70%.

[0028] 2. Fixing: The spread leaves are fixed by a roller fixing machine. The temperature and time of fixing are controlled at 190°C and 60s respectively, the enzyme activity is inactivated, and the fragrance of tea leaves is preserved.

[0029] 3. Cooling: Cool immediately after finishing, and let it rehydrate naturally for 10 minutes.

[0030] 4. Kneading: After the green leaves are cooled, use a rolling machine to knead to destroy the tea cells and tighten the tea sticks. The kneading time is 15 minutes, and the pressurization method is "light-heavy-light".

[0031] 5. Baking...

Embodiment 2

[0038] 1. Spread fresh leaves: Machine-picked fresh leaves of Beizhong tea tree are used as raw materials. The picking standard is one bud and two or three leaves, and the proportion of fragmented leaves and single leaves is 30%. The fresh tea leaves are placed on the silage machine and spread out, the thickness of the leaves is 10cm, the time of spreading is 4h, and the moisture content drops to 75%.

[0039] 2. Fixing: The spread leaves are fixed by a drum fixing machine, the temperature and time of fixing are controlled at 180°C and 75s respectively, the enzyme activity is inactivated, and the fragrance of tea leaves is retained.

[0040] 3. Cooling: Cool immediately after finishing, and let it rehydrate naturally for 20 minutes.

[0041] 4. Kneading: After the green leaves are cooled, use a rolling machine to knead to destroy the tea cells and tighten the tea sticks. The kneading time is 20 minutes, and the pressurization method is "light-heavy-light".

[0042] 5. Baking ...

Embodiment 3

[0049]1. Spread fresh leaves: Machine-harvested Longjing 43 tea tree fresh leaves are used as raw materials. The picking standard is two or three leaves per bud, and the proportion of fragmented leaves and single leaves is 40%. The fresh tea leaves are placed on the silage machine and spread out, the thickness of the spread leaves is 8cm, the spread time is 6h, and the moisture content drops to 72%.

[0050] 2. Fixing: The spread leaves are fixed by a drum fixing machine. The temperature and time of fixing are controlled at 215°C and 67s respectively, the enzyme activity is inactivated, and the fragrance of tea leaves is retained.

[0051] 3. Cooling: Cool immediately after finishing, and let it rehydrate naturally for 18 minutes.

[0052] 4. Kneading: After the green leaves are cooled, use a rolling machine to knead to destroy the tea cells and tighten the tea sticks. The kneading time is 16 minutes, and the pressurization method is "light-heavy-light".

[0053] 5. Baking tw...

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Abstract

The invention relates to a granular green tea processing method through the combination of microwave drying of first-step roasting leaves and double-pot tea curling machine shaping, and belongs to the technical field of tea processing. The granular green tea processing method comprises the following processing steps: spreading of fresh tea leaves; deactivation; spreading for cooling; rolling; drying of first-step roasting leaves; shaping; spreading for cooling; drying; fragrance extraction. According to the granular green tea processing method through the combination of microwave drying of the first-step roasting leaves and double-pot tea curling machine shaping, the design is reasonable, and a good foundation is provided for the subsequent steps of drying of the first-step roasting leaves and shaping by reasonably restricting the conditions of spreading, deactivating, spreading for cooling and rolling; microwave heating is utilized for completing the working procedure of drying of the first-step roasting leaves, so that the water content of first-step roasting leaves is easily adjusted and controlled, the color is relatively green, and cooling treatment is not needed, so that the shaping can be directly performed; a double-pot tea curling machine is utilized for shaping, so that the shaping time is short, and the quality of a final tea product is excellent. Experiment results show that leaves collected by machines are suitable for being processed into granular green tea by adopting the granular green tea processing method provided by the invention, and the granular green tea is attractive in appearance, fresh in fragrance and pure in mouthfeel, and is popular among green tea consumers.

Description

technical field [0001] The invention belongs to the technical field of tea processing, and in particular relates to a method for processing granular green tea combined with microwave-dried green tea and double-pot bent mill machine. Background technique [0002] In the past ten years, China's tea production and output value have hit record highs year after year. According to statistics, in 2013 the national tea garden area reached 38.69 million mu, of which the picking area accounted for about 75.4%. Because the management of tea gardens requires a lot of manpower and material resources, especially the picking of fresh tea leaves. This is because the picking of fresh tea leaves is labor-intensive and highly seasonal, and short-term "labor shortages" are prone to occur. Therefore, tea production urgently needs to solve the technical problems of mechanized picking in tea gardens. [0003] The canopy of the tea garden under the existing three-dimensional picking mode is not ...

Claims

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Application Information

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IPC IPC(8): A23F3/06
Inventor 林智郭丽余方林郭敏明朱荫张悦彭群华戴伟东谭俊峰吕海鹏
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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