stainless steel fermenter for sale in Australia WEMAC G041

The main feature of red wine fermentation is impregnation fermentation. That is, in the fermentation process of red wine, the fermentation of alcohol and the impregnation of solid matter exist simultaneously. Fermentation converts sugar into alcohol, and impregnation dissolves phenolic substances such as tannins and pigments in solid materials in wine.
White wine is an alcoholic beverage obtained by alcoholic fermentation of white grape juice. In the fermentation process, there is no impregnation of grape juice on the solid part of the grape.

This is an indispensable process to ensure the production of high-quality wine. After the grapes are picked, they will have grape leaves, mildew and so on. They must be picked and removed to avoid affecting the quality of the future brewing.
2, grape stems broken
1) The purpose of grape stem removal
The stem is removed in order to remove the fruit stems in whole or in part, reduce the color and alcohol loss of the red wine, 

reduce the tannin content and astringency, and reduce the green stalk taste, bitterness and wine produced by the immature, unligended fruit stems. The quality of the product also reduces the fermentation volume and increases the effective utilization of the fermentation vessel; the crushing is to crush the grape berry to facilitate the juice outflow, so that the juice and the solid part of the berry are in full contact, facilitating the pigment, tannin and Dissolution of aromatic substances. 

The crushing can be carried out separately by using the crusher, and it can also be carried out simultaneously with the stem-crusher and the stem removing. The advantage of this crushing process is that the intact granules are separated from the stems, and the grape stems are not in contact with the juice, thereby preventing the leaching of the unfavorable components in the contact stalks, and the contact time of the stalks with the juice is only a few seconds.