Application of filter bag in beer production

Filter bag is widely used in food and brewing industry. There are three main links in modern beer production using filter press.



1. filter bag of wort in the process of wort preparation

After the saccharification, the saccharification glue solution should be separated from the insoluble grains in a short time to obtain transparent and bright wort. The old technology is filtered by filter tank. This method covers a large area and has low filtration speed. The filter press can greatly improve the filtration speed and give full play to the ability of saccharification.



2. filter bag for mature beer after fermentation

After fermentation, the mature beer contains residual yeast and protein coagulant. Yeast, bacteria and particles of small turbid substances must be removed from liquor by filtration to make the liquor clear and transparent, so as to drink. This can be achieved by using microfiltration.



Before the beer is filtered by filter bag, it is a suspension liquid containing a large amount of solid. It is necessary to intercept the solid substance on the filter medium by the filter press. The filter medium used in brewery is fiber filter plate and diatomite. The two kinds of press filters are called cardboard filter press and diatomite filter press respectively. According to the separation accuracy, the filter of diatomite filter press is called coarse filter and fine filter is used for filter by cardboard filter press.