Kirin Brewery Company, Limited

Fuji-davison Chemical Ltd.

Katsuhiko Asano

Koichi Matsuzawa

Yasuo Esaki

Katsutoshi Okamura

There is provided by this invention a finely divided hydrated silica gel which has a specific surface area of 530 -720 m.sup.2 /g, preferably 550-650 m.sup.2 /g, a pore volume of 0.9-1.5 ml/g, preferably 1.0-1.4 ml/g, a mean pore diameter of 50-120 .ANG., preferably 60-100 .ANG., a water content of 7-25% by weight, preferably 8-13% by weight (wet weight basis), and moreover the pH of which as a 5% aqueous suspension is 6.0-8.0, thereby producing a silica gel suitable for stabilization treatment of beer, and for reduction of the colloidal components in beer.

Hydrated silica gel for stabilization treatment of beer

There is provided by this invention a finely divided hydrated silica gel which has a specific surface area of 530-720 m.sup.2 /g, preferably 550-650 m.sup.2 g, a pore volume of 0.9-1.5 ml/g, preferably 1.0-1.4 ml/g, a mean pore diameter of 50-120 .ANG., preferably 60-100 .ANG., a water content of 7-25% by weight, preferably 8-13% by weight (wet weight basis), and moreover the pH of which as a 5% aqueous suspension is 6.0-8.0, thereby producing a silica gel suitable for stabilization treatment of beer, and for reduction of the colloidal components in beer.

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Takasaki, Japan

Katsuhiko Asano