A kind of new process yellow tea and preparation method thereof

Abstract

The invention relates to a new process of yellow tea and its preparation method; specifically, it is a kind of fresh leaves of tea trees with one bud and one leaf and one bud and two leaves as raw materials, which are processed according to the process of withering, killing green, rolling, stuffing yellow, drying, and improving fragrance. , a high-quality yellow tea processing method whose product has the quality characteristics of sweet (fresh) corn fragrance or rice cracker fragrance; the present invention increases the withering time, which can reduce the water content of fresh leaves; utilizes sun-dried yellow tea to create a high-temperature and high-humidity environment conditions, a large amount of chlorophyll is destroyed, so that the yellow substances such as theaflavins produced by non-enzymatic automatic oxidation of polyphenols under the action of heat and humidity are exposed, so as to achieve the purpose of improving the color quality of yellow tea; oxidize polyphenols and degrade chlorophyll ; The use of ultraviolet rays in the sun can inhibit the growth of undesirable microorganisms such as mold in the tea base, which is beneficial to the formation and safety of good quality yellow tea.

Description

technical field [0001] The invention relates to a new process yellow tea and a preparation method thereof, belonging to the field of tea processing. Background technique [0002] Yellow tea is one of the six basic teas in my country, among which Junshan Yinzhen, Mengding Huangya, Huoshan Huangya, Pingyang Huangtang and other yellow tea products are well-known at home and abroad or have a long history. However, because the traditional yellow tea processing adopts the method of "heating and stuffing yellow" to form its quality characteristics of "yellow soup and yellow leaves", it usually takes a long time (for example, it usually takes 3-4 days to process a batch of Junshan Silver Needle tea, of which the stuffing The yellowing process just takes 24-36h.), and needs to maintain a certain high temperature and high humidity environment, which not only increases the processing cost, but also limits the expansion of the processing scale and the increase of the output to a certain...

AI Technical Summary

Problems solved by technology

However, because traditional yellow tea processing adopts the method of "heating and stuffing yellow" to form its quality characteristics of "yellow soup and yellow leaves", it usually takes a long time (for example, it usually takes 3-4 days to process a batch of Junshan Silver Needle tea, of which the stuffing The yellowing process takes 24-36 hours

), and need to maintain a certain high temperature and high humidity environment, which not only increases the processing cost, but also limits the expansion of the processing scale and the increase of output to a certain extent

In addition, long-term "stuffy yellow" under high temperature (40-60°C) and high humidity conditions can easily lead to the growth of microorganisms, which in turn affects the safety and quality of tea

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