Production method of green tea

Abstract

The invention discloses a production method of a green tea. The production method comprises the following specific steps of withering with hot blast: uniformly spreading a thin layer of picked fresh leaves on a withering trough, wherein the leaf spreading thickness is 5cm, and the withering temperature is 60-70 DEG C, so that the fresh leaves are uniformly and consistently withered, and compared with the fresh leaves which are picked a moment ago, the mass loss of the tea leaves is 20-25% in percentage by mass; fixation with hot blast: placing the withered fresh leaves with hot blast in a roller fixation machine, wherein the roller temperature is 350-380 DEG C, the fixation time is 3-5s, 500-600kg of the leaves are put, and compared with the tea leaves which are picked a moment ago, the water loss of the tea leaves is 65-70% in percentage by mass; then, sequentially performing the following operation steps of spreading the fresh leaves after fixation for the first time so that the fresh leaves after the fixation are cooled, performing resurgence on the cooled fresh leaves, tidying tea strips, performing depilation, spreading the fresh leaves after the depilation for the second time so that the fresh leaves after the depilation are cooled, performing resurgence on the fresh leaves, shaping the tea leaves, baking the shaped tea leaves, sorting the baked tea leaves, flavor distilling and the like; and limiting the corresponding technological parameters, and improving the fragrance and the taste of the green tea. The operation step sequence is reasonably designed, and the activity of oxidase in fresh tea leaves is destroyed at high temperature and inactivated, so that the tea leaves are soft, and give out delicate fragrance, which is favorable for the formation of the fragrance of the tea leaves.

Description

technical field [0001] The invention belongs to the field of tea processing, and in particular relates to processing of green tea. Background technique [0002] Green tea, also known as non-fermented tea. Green tea is made without fermentation, so it retains more natural substances of fresh leaves, and contains more nutrients such as tea polyphenols, catechins, chlorophyll, caffeine, amino acids, and vitamins. These natural nutrients in green tea have special effects on anti-aging, anti-cancer, anti-cancer, sterilization, anti-inflammatory, etc., which are beyond the reach of other teas. Green tea is a kind of tea made from suitable new shoots of tea trees as raw materials through typical processes such as greening, rolling, and drying. Its dry tea color and brewed tea paste and the bottom of the leaves take green as the main tone, hence the name green tea. Green tea is made by picking the fresh leaves first through high temperature killing, killing various oxidases, keep...

AI Technical Summary

Problems solved by technology

[0003] The preparation method of tea leaves in the prior art includes steps such as material selection, finishing, secondary rolling, secondary drying, and shaping in sequence. However, in this production process, due to the long-term Excessive mechanical rolling and drying will destroy the shape, color, taste and nutritional components of the tea, and the color and aroma of the tea will be greatly affected when brewing in hot water.

And the process is simple, and the external quality such as the green tea leaves shape, color etc. all can't satisfy people's growing demand