Pit-sealing method of pit pool for solid brewing

Abstract

The invention relates to a pit-sealing method of a pit pool for solid brewing, and belongs to the technical field of wine brewing. The technical problem solved by the invention is t to provide a pit-sealing method of a pit pool for solid brewing, and the method can improve the pit-sealing effect and prevent the quality of pit-sealing mud from being reduced continuously. The pit-sealing method of a pit pool for solid brewing of the invention comprises the following steps: firstly sealing a pit pool by old pit-sealing mud, uniformly coating fresh yellow slurry on the old pit-sealing mud, and finally sealing the pit pool by plastic films.

Description

technical field [0001] The invention relates to a cellar sealing method for a solid-state brewing cellar, and belongs to the technical field of brewing. Background technique [0002] Cellar sealing is an important link in the solid-state brewing production process. The fermented grains that enter the cellar need to undergo closed anaerobic fermentation for wine production and aroma production. The tightness of the cellar is directly related to the normal fermentation of the fermented grains in the cellar. If the cellar is not tightly sealed, there will be air leakage in the cellar, which will affect the normal microbial fermentation process, and even cause bacterial contamination, resulting in a decline in wine production and quality. And seriously damage the fermentation cellar, resulting in a decline in the performance of the cellar. Therefore, in the actual production process, people pay special attention to the cellar sealing process. [0003] Traditionally, the metho...

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Problems solved by technology

However, this method has the following problems, which affect the effect of sealing cellars

[0004] First, in the process of opening the cellar every time, some surface residues will stick to the bottom of the cellar sealing mud. With long-term recycling, the amount of residues contained in the sealing mud will increase, that is, the content of chaff in the mud will increase. , resulting in the roughening of the sealing mud, the decrease of the viscosity of the mud, the decrease of the quality of the sealing mud, and the deterioration of the sealing effect. Air leakage holes and cracks are prone to appear on the sealing mud, which will cause air leakage in the cellar and affect the normal fermentation process. leading to a decline in the quality of wine production

[0005] Second, because the pit-closing mud is in contact with the fermented grains rich in nutrients every time, and part of the fermented grains adheres to the process of opening the cellar, as time goes on, the nutrients in the pit-closing mud become more and more abundant, and the quality of the mud changes. It is grayish black, and there are beneficial microorganisms for winemaking in it, and it is also easy to infect external bacteria, resulting in the formation of large mold spots on the sealing mud, which is easy to cause bacterial contamination, resulting in a decline in the quality of the wine, and even causing the cellar to be destroyed. Pollution

[0006] Third, due to the long fermentation period of solid-state winemaking, some as long as half a year or even several years, due to the non-standard water retention measures of the sealing mud, it is easy to cause the sealing mud to lose water and cause cracks, resulting in air leakage in the cellar and affecting normal operation. fermentation process

[0007] Fourth, the color of the old pit mud is gray and black, which is formed after a long-term winemaking process, so that there are beneficial microbial populations required for wine brewing and fragrance. If it is rough, the sealing quality will gradually decline, and the effect of sealing the cellar will become unreasonable. If new yellow mud is used, the wine quality will be poor

In this method, the sealing effect of the cellar is better, but there are also some disadvantages

This method, first of all, takes several days to smear fresh thin yellow mud water, the operation is too cumbersome, and the yellow mud layer is relatively thin, and it is also easy to form cracks, especially during the "falling cellar", that is, due to the action of microorganisms, the amount of bad fermented grains in the cellar is reduced. Reduced, resulting in the drop of the sealing mud layer and easy to cause cracks

Secondly, since the mud was directly exposed to the air for several days after the cellar was sealed without a film, the thin layer of fresh yellow mud could not separate the old mud from the air, and the old mud was rich in nutrients, thus Lead to the formation of a large number of miscellaneous plaques on the sealing mud, and the muddy smell seriously affects the quality of wine production

Thirdly, the sealed film covers the pit-sealing mud, and the edge of the film is not inserted into the edge of the pit-sealing mud, so the sealing effect is poor, the water dispersion of the pit-sealing mud is large, and the pit-sealing mud is easy to breed miscellaneous bacteria

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