Beer silica gel is an amorphous structure of the solid powder, pore size 8 ~ 16nm, chemical formula is mSiO2, nH2O, insoluble ... Beer silica gel is an amorphous structure of the solid powder, pore size 8 ~ 16nm, chemical formula is mSiO2, nH2O, ... . It harmless to human body with the characteristic of non-toxic, tasteless, non-burning, non-explosive, with strong heat and cold stability. The beer ...