On-line measurement of Brewer's yeast flocculation during fermentation

Abstract

The separation of yeast at the and of a beer fermentation depends on the ability of the yeast to become flocculent, form floes and sediment to the bottom of the fermenter. To monitor these processes an on-line method has been developed. With the instrument, a Photometric Dispersion Analyser, it is possible to determine flocculation on-line at the same conditions as in the fermenter.