Evaluation of Kieselguhr as a Beer Filter Aid

Abstract

The different sources and varying grades of kieselguhr filter aids on offer commercially are discussed, and a standard scheme of analysis is suggested. This scheme is designed to cover in general the effect of kieselguhr on beer, the efficiency of filtration, and the presence of impurities in the kieselguhr. A number of analyses are quoted, and the inferences which can be drawn from them are indicated.