Kvasny Prum. 1996; 42(1): 11-15 | DOI: 10.18832/kp1996001

Rapid Determination of Haze Forming Beer Substances.Peer-reviewed article

J. ŠAVEL, D. ZDVIHALOVÁ, M. PROKOPOVÁ

An accelerated test of haze forming beer substances determination is described. Beer is oxidized at 60 °C for 2 h with addition of 5% potassium persulfate or 40% ammonium persulfate in resultant concentration 0,5 up to 1,0 %. After cooling to room temperature the permanent haze is measured in the haze meter and after further cooling to O °C the chill haze is measured. Both values are in correlation with colloidal stability of beer, which is measured by heat shocking. Dissolved oxygen and air oxygen in bottle neck are measured separately during beer bottling. This test makes possible to measure the changes of haze forming substances content in the course of beer production.
(In Czech, English summary only)

Keywords: beer, hate forming substances, determination

Published: January 1, 1996