Loose Fuzhuan tea based on natural eurotium cristatum growing and preparation method thereof

Abstract

The invention provides a loose Fuzhuan tea based on natural eurotium cristatum growing and a preparation method thereof. The method comprises the following steps: firstly, performing glaze boiling on raw dark green tea and water, then performing filtration to obtain filtrate, uniformly mixing the filtrate and the raw dark green tea to obtain glaze mixed materials, and sequentially performing pile fermentation, steaming, compression molding and eurotium cristatum growing on the glaze mixed materials to obtain tea bricks; then opening the tea bricks, when eurotium cristatum in the tea brick is thick, crushing the tea brick outside a eurotium cristatum growing chamber into a state before compression molding, then uniformly spraying a zein solution with the mass concentration of 2-10% to fix the eurotium cristatum, then growing the eurotium cristatum in an environment of 40-70% at 26-30 DEG C, and finally drying to obtain the loose Fuzhuan tea, the falling of the eurotium cristatum can be obviously reduced, and the pollution phenomena of aspergillus niger, penicillium and the like are avoided.

Description

technical field [0001] The invention relates to the technical field of the preparation of loose-fu tea, in particular to a loose-fu tea based on natural flowering and a preparation method thereof. Background technique [0002] Fuzhuan tea is a post-fermented tea, which is a dark tea product with the most complicated processing technology, the longest production and processing cycle and the most unique technology among all teas. The inner quality of Fuzhuan tea is luxuriant with golden flowers, and the aroma of bacteria is strong. After boiling the soup, the soup is red and thick, with a mellow taste and a pure aroma. In recent years, with the improvement of people's living standards, the traditional varieties of Chenxiang tea with health benefits and investment value-added, especially Fuzhuan tea, have developed rapidly and have attracted much attention in tea products. [0003] However, the processing technology of traditional Fuzhuan tea is complicated, and it takes a lon...

AI Technical Summary

Problems solved by technology

[0004] At present, the preparation of loose Fu tea mainly includes two methods. One is: the black hair tea is screened, heaped, steamed and then placed in a container, and the humidity and temperature are controlled to allow natural blooming. This process is simple to operate and takes a long time to bloom. Short, but the flowering process is uncontrollable, and the product is easily polluted by Aspergillus niger, Penicillium, etc., resulting in extremely low yield

The second is: after the black hair tea is screened, heaped, and autoclaved to remove the miscellaneous bacteria, it is inoculated with pure strains of Saccharomyces coronis for fermentation. The advantage of this process is that it can effectively avoid the contamination of miscellaneous bacteria, but the disadvantages are also obvious. The main reason is that there is a high-pressure sterilization step in the processing process, which causes a large loss of active ingredients in the tea, and the high-temperature treatment has a certain impact on the aroma of the tea, thus reducing the quality of the product.

In addition, the above two methods also have a common disadvantage: after the flowering is finished, the golden flowers on the tea leaves are easy to fall off during the drying, storage and packaging process of the tea leaves, which affects the quality.

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