Beer silica gel is mainly used for beer filtration and is an essential product for beer filtration. It is an amorphous, microporous solid powder. The pore size is 8-16nm. Silica gel will not react in beer, does not affect the taste of beer, is non-toxic, tasteless, and is not high in price, much cheaper than PVPP. Beer silica gel can be divided into dry silica gel and water silica gel, which are harmless to the human body. It is easy to adsorb and remove turbid proteins and turbid polyphenol polymers in beer, which can remove impurities and odors, improve the quality of beer, extend the shelf life and storage period of beer, and effectively improve and ensure the quality of finished beer.