Combined green-fixing method of tea leaves

A technology for tea and greening, applied in the field of combined greening of tea, can solve problems such as uneven greening and poor greening effect, and achieve the effects of ensuring integrity, solving uneven greening and promoting the formation of aroma.

Inactive Publication Date: 2018-11-13

付世平

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AI-Extracted Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to: aim at the problems existing in the prior art, to provide a method for combining tea leaves, to ...

Abstract

The invention discloses a combined green-fixing method of tea leaves. The method comprises the steps of fresh leaf washing and draining, spreading, green-fixing in a cylinder, remedial green-fixing with microwave, rolling, tea strip tidying, drying and the like. According to the method, green-fixing is performed on tea leaves which are subjected to primary treatment including green leaf storage and other processes, two-stage cylinder green-fixing is utilized in the green-fixing process, humid and hot air is emitted during continuous delivery between the two cylinders, so that the problem thata great number of tea leaves are yellow and have red stalks or leaves due to the fact that humid air in the cylinder is difficult to emit and green-fixing is not performed sufficiently can be avoided;and remedial green-fixing with microwave can be used for quickly destroying and passivating the activity of oxidase in fresh leaves and inhibiting enzymatic oxidation of tea polyphenol and the like.The method can solve the problems of uneven green-fixing and poor green-fixing effect in an existing tea leaf green-fixing method, and ensures the taste and flavor of tea leaves.

Application Domain

Pre-extraction tea treatment

Technology Topic

FlavorProduct gas +8

Examples

Experimental program(2)

Example Embodiment

[0017] Example 1

[0018] A method for combining tea leaves, including the following steps:

[0019] (1) After washing the fresh leaves with clean water, bring water into the microwave oven and medium heat to quench until the water content drops to 55-60%;

[0020] (2) The tea leaves are spread on the storage trough, the thickness of the spread leaves is 10cm~15cm, the auxiliary blower is ventilated, and the spreading time is 10h;

[0021] (3) Tumbler curing: the tea leaves are processed in the first roller curing machine. The curing temperature is 230°C in the front and middle of the roller, 160°C in the rear, and the residence time of the tea is 7 minutes; the tea leaves after the initial curing are continuously transported to the first The two-roller curing machine emits heat and moisture on one side; the curing temperature in the second-roller curing machine: 200°C for the front and middle parts, 140°C for the rear part, and 3 minutes of tea stay time;

[0022] (4) Microwave supplementary killing: the tea leaves after being cured by the drum are sent to the microwave curing machine through the conveyor for supplementary killing. The temperature of the curing machine is 120℃, the leaf temperature is 50℃~55℃, the speed is 1000r/min, and the curing time is 1 minute;

[0023] (5) Kneading: After the greening, the tea leaves are added to a hot pot at 110°C and kneaded for 15 minutes; then cooled to 75°C and kneaded for 5 minutes; after cooling to room temperature, store for 1 hour;

[0024] (6) Arranging and drying: the tea leaves are fed into the organizing mechanism, and then the tea leaves after being arranged in a pot at 110°C, fry and bake until the moisture content is 5 to 6%.

Example Embodiment

[0025] Example 2

[0026] A method for combining tea leaves, including the following steps:

[0027] (1) After washing the fresh leaves with clean water, bring water into the microwave oven and medium heat to quench until the water content drops to 55-60%;

[0028] (2) The tea leaves are spread on the storage trough, the thickness of the spread leaves is 10cm~15cm, the auxiliary blower is ventilated, and the spreading time is 14h;

[0029] (3) Tumbler curing: the tea leaves are processed in the first roller curing machine. The curing temperature is 280℃ in the front and middle part of the drum and 180℃ in the rear part. The residence time of the tea leaves is 5 minutes; The two-roller curing machine emits heat and moisture on one side; the curing temperature in the second-roller curing machine: 180°C for the front and middle part, 120°C for the rear part, and the tea stay time is 4 minutes;

[0030] (4) Microwave supplementary killing: the tea leaves after being cured by the drum are sent to the microwave curing machine through the conveyor for supplementary killing. The temperature of the curing machine is 120℃, the leaf temperature is 50℃~55℃, the rotation speed is 1000r/min, and the curing time is 2 minutes;

[0031] (5) Kneading: After finishing, add the tea leaves to a hot pot at 120°C and knead for 10 minutes; then cool to 85°C and knead for 5 minutes; after cooling to room temperature, store for 2 hours;

[0032] (6) Arranging and drying: The tea leaves are fed into the organizing mechanism, and then the tea leaves after being arranged in a pot at 120°C, fry and bake until the moisture content is 5 to 6%.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Inhibits enzymatic oxidation
easy to shape

Combined green-fixing method of tea leaves

A technology for tea and greening, applied in the field of combined greening of tea, can solve problems such as uneven greening and poor greening effect, and achieve the effects of ensuring integrity, solving uneven greening and promoting the formation of aroma.

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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