Kvasny Prum. 1969; 15(1): 12-17 | DOI: 10.18832/kp1969002

Wort clarification in whirling tanks.Peer-reviewed article

T. LEJSEK, M. KAHLER, Z. ŠAUER

The article deals with the practical experience with whirling tanks installed at several breweries. They have some advantages and simplify equipment of fermenting rooms. The autors have carried out a series of tests with a 300 hl whirling tank. The diametre of the tank was 3150 mm. The efficiency of clarification is evaluated by applying two criteria: the percentage of sludge remaining in clarified wort and losses of extract in sludge. The experiments were carried out with 10 % and 14 % wort.From a series of brewing almost 100 % of coarse sludge was separated with extract losses not exceeding 0,25-0,40 %. Each brewing must be handled separately, since handling two brewing a time results in higher extract losses. Beside analyses and organoleptic test of beer made of wort clarified in the whirling tanks it was compared  with conventionally brewed beer, i. e. cooled and clarified on cooling floor. No significant difference could be detected.
(In Czech, English summary only)

Keywords: wort, whirlpool, whirling tank, technology

Published: January 1, 1969