Astragalus green tea producing process

Abstract

The production process of astragalus green tea includes the following steps: deactivating the enzyme of tender astragalus leaf and flower bud in an enzyme deactivating machine at 160-200 deg.c for 1-2 min; kneading in a kneading machine for 10-18 min to reach cell breaking rate of 45-65 %; separating and straightening at 100-130 deg.c for 13-15 min to form strips; stoving at 100-130 deg.c to water content lower than 8 %; eliminating stem in a stem eliminating machine; eliminating micro hair with one fan duster; and grading to obtain the astragalus green tea. The present invention has advanced technological process, short tea making period, and other advantages.

Description

technical field [0001] The invention relates to a method for producing Beiqi green tea. Background technique [0002] Chinese Invention Patent Publication No. CN1049956A discloses that the name is: astragalus tea production method, and this production method is to be by leaf selection, finishing, loose gas (cooling), drying, smoking (synthetic), pulverizing, mixing, sterilizing, packing Its leaf selection process has a picking period of only one month from mid-July to mid-August, and it is picked at noon without rain, so the picking time and period are too short, and the picking cost is too high; The temperature is 70-40°C, and the killing time is 3-5 minutes. Because the fixing temperature is low, it takes a long time to kill. Because the fixing temperature is too low, it cannot effectively completely destroy the activity of enzymes in fresh leaves, and cannot make the grass smell of Astragalus leaves Distribute completely, the water content of the astragalus leaves after ...

AI Technical Summary

Problems solved by technology

[0002] Chinese Invention Patent Publication No. CN1049956A discloses that the name is: astragalus tea production method, and this production method is to be by leaf selection, finishing, loose gas (cooling), drying, smoking (synthetic), pulverizing, mixing, sterilizing, packing Its leaf selection process has a picking period of only one month from mid-July to mid-August, and it is picked at noon without rain, so the picking time and period are too short, and the picking cost is too high; The temperature is 70-40°C, and the killing time is 3-5 minutes. Because the fixing temperature is low, it takes a long time to kill. Because the fixing temperature is too low, it cannot effectively completely destroy the activity of enzymes in fresh leaves, and cannot make the grass smell of Astragalus leaves Distribute completely, the water content of the astragalus leaves after finishing is too much, and the tea quality is poor; the smoking (synthetic) process is to add 5% astragalus flowers to the leaves of astragalus after finishing, spray with alum water, and then dry. , alum is harmful and unfavorable to people’s health; the following crushing process, due to the crushing process of the dried Astragalus leaves, many Astragalus leaf strips become broken and not in strips, which reduces the rate of producing high-quality finished tea

Another Chinese Invention Patent Publication No. CN1171890A discloses the name as: Beiqi Ganoderma lucidum tea production method, which is composed of picking, fixing, rolling, drying, pulverizing, re-drying, leaching and packaging operations. Its picking process The picking period is from June 15th to July 15th, which is only one month, so the picking period is short; the killing temperature of the greening process is 150°C, and the killing time is 5 minutes, although the killing temperature is lower than that of the Astragalus tea produced by Chinese Invention Patent Publication No. CN1049956A The method is high, but still low, so it takes a long time to finish; the kneading process is to first dry the finished Beiqi leaves until they are 60% dry, and then rub them with hands or tools for 3-5 minutes. The operation is both labor-intensive and time-consuming; the following processes are drying, crushing, re-drying, and extraction processes. The dried leaves of Beiqi are crushed due to the crushing process, and many leaves of Beiqi are broken into pieces, making them The rate of high-quality finished tea is reduced, and the active ingredients in the finished tea are reduced due to the adoption of the extraction process