Machining method for combining drum and microwave water removal and vacuum and normal-pressure composite drying for green tea tender leaves

Abstract

The invention discloses a machining method for combining drum and microwave water removal and vacuum and normal-pressure composite drying for green tea tender leaves. At first, picking at a first stepis controlled, picking during dewing or after raining is avoided to avoid bitter and light taste, and thus, water of leaves and stems are dispersed uniformly; a microwave water removal and drum waterremoval are combined, after water of green tea tender leaves is removed, the appearance, color, liquor color and tea leaves of the green tea tender leaves are good, and the green tea tender leaves contains quite high vitamin C, tea polyphenols, caffeine and chlorophyll; then cold twisting is carried out by a segmented manner, the quality of green tea is improved, and the twisting efficiency is improved; finally, a vacuum and normal-pressure combined drying mode is adopted, and magnesium removal reaction of the chlorophyll is avoided; and by high-temperature drying, the fragrance of the tea leaves can be enhanced, and the integral quality of the green tea tender leaves is further improved. A series of process steps of processing of the green tea tender leaves can be totally operated mechanically, the working efficiency is stable and efficient, the quality of the processed tea leaves is high, and meanwhile, the integral processing level of the tea leaves is increased.

Description

technical field [0001] The invention relates to the technical field of tea processing, in particular to a mechanical processing method of young green tea green leaves, which combines roller microwave deenzyming and vacuum normal pressure composite drying. Background technique [0002] The origin of tea tree is China, and tea has been used in my country very early, and has a very long production history. my country has a very wide distribution of tea planting areas, and it is a well-deserved big tea-producing country. As the first of the three major beverages (tea, coffee, cocoa) in the world today, tea contains more than 450 kinds of organic chemical components and more than 40 kinds of inorganic mineral elements, which have an important impact on people's health. With the development of science and technology and the improvement of people's quality of life, health beverage products using tea as raw materials are becoming people's daily needs. Green tea refers to the tea p...

AI Technical Summary

Problems solved by technology

However, the production of tea processing machinery and equipment has always been extensive production, and the processing period is unstable, which restricts the improvement of tea processing level

There are still some differences in the technology of tea processing machinery in my country compared with foreign countries, mainly in the instability, the temperature control of the greening machine is poor, and the pressure regulation of the machine is unstable.