Kvasny Prum. 1990; 36(3): 66-70 | DOI: 10.18832/kp1990008

Comparison of Calofrig and Celite kieselguhrs for beer filtration.Peer-reviewed article

J. VOBORSKÝ, V. POTĚŠIL

The properties of two basic types of Czech Caofrig kieselguhrs were compared with those of Celite in model filtration tests; rough kieselguhr F 60 with that of HSC, fine kieselguhr F 4 with that of FC-E. The better results obtained with Celite can also be achieved with Calofrig kieselguhr under conditions of its suitable application. The lower wet volume of F 60 kieselguhr can be eliminated using of 30 % higher weight in the base layer in comparison to HSC. In case of beers with good filtration properties the Czech kieselguhrs permit to achieve the same results as those with Celite kieselguhr. In case of beers with worse filtration properties the use of kieselguhr F 60 results in a higher pressure increase (10 to 50 %)' comparing with kieselguhr HSC and using fine kieselguhr F 4 the filtration quality decreases (of 0,05 to 0,20 EBC U). If a mixture of F 4 and FC-E kieselguhrs in a ratio 1:1 is used, practically no difference was observed.
(In Czech, English summary only)

Keywords: beer, filtration, kieselguhr

Published: March 1, 1990