Method for producing golden flower dark tea by employing rapid fermentation of raw dark tea brick

Abstract

The invention discloses a method for producing a golden flower dark tea by employing rapid fermentation of a raw dark tea brick. The method comprises the following steps: (1) sterilizing in a fermentation room, sterilizing an air-tight fertilization room with an air inlet and an air outlet; (2) sterilizing the dark tea, carrying out moist heat sterilization on a raw dark brick tea in an autoclaved sterilization pot; (3) artificially inoculating an eurotium cristatum strain and blending to prepare a strain solution, cooling the sterilized raw dark tea brick to a room temperature, and soaking in the strain solution or evenly spraying the strain solution on the surface of the tea brick; and (4) uniformly and vertically putting the inoculated tea brick on a fermentation frame of a sterilized fermentation room, fermenting for 7-21 days, taking out and carrying out reduced pressure drying, so as to obtain the golden flower dark brick tea brick. According to the method disclosed by the invention, efficient flowering of the dark tea is achieved; the cost is low; each gram of dry tea contains not more than 1.8*10<7> eurotium cristatum in average; the soup brewed by the golden flower dark tea is clear, and fragrant in aroma; the produced brick tea is stable in quality, can be stored for a long period of time, and has relatively good nutrients and relatively high collection value.

Description

technical field [0001] The invention relates to a method for producing golden flower dark tea, in particular to a method for producing golden flower dark tea by rapid fermentation using black tea raw tea bricks. Background technique [0002] Eurotium cristatum (Latin name: Eurotium cristatum) belongs to the genus Aspergillus cinerea. It is the dominant bacterial species in the flowering process of Fuzhuan tea, and plays an extremely important role in the formation of the unique quality of Fuzhuan tea. Fuzhuan brick tea is made from black hair tea, which is processed through screening, steaming, retting, pressing, flowering and drying. The key process to form its unique quality is "flowering", which makes it emit a unique "Mushroom Flower Fragrance" refers to the fermentation process with the participation of Saccharomyces coronatosa, which can well metabolize the bitter and astringent substances in the tea and produce the unique aroma of Fuzhuan tea. The dominant bacteria i...

AI Technical Summary

Problems solved by technology

[0003] In the prior art of dark tea fermentation, fresh dark tea raw materials are mostly used to ferment tea, such as the dark tea fermentation process disclosed in CN 102265945A and CN 103564075A is Fermentation in the primary production process of black tea, such as the method of fermenting by controlling the temperature and humidity in the process of stacking, but the fermentation process is cumbersome and takes a long time; in order to ferment quickly by adding dominant strains, there are also solids in the prior art. A method for fermenting dark tea, such as CN 103283882 A, discloses a solid fermentation process of Jinhua dark tea, which is a method for fermenting fermented black tea using coronoids. The method is to ferment the picked black tea after pretreatment The tank is fermented, then steamed, inoculated with Saccharomyces coronis, fermented, and then molded and formed, but this method needs to be equipped with a large fermentation tank, and the requirements for fermentation conditions, plant equipment investment and production and operation costs are relatively high; CN102524442B The method of solid-state fermentation is also adopted, and S. coronoidis is added after steaming the tea. Although Jinhua dark tea is finally obtained, the steps are cumbersome. Because it breaks the traditional manufacturing process, it has high requirements for production capacity and poor applicability. powerful