Kvasny Prum. 1975; 21(8): 175-178 | DOI: 10.18832/kp1975022

Results of experiments carried out on production scale on the separation of sludge containing ground hops.Peer-reviewed article

T. LEJSEK, J. MAREŠ

If ground or granulatet hops are used for brewing wort, the amount of coarse and cold sludge contained in wort pumped from brewhouse is higher than usual and hop strainers fail do separate it. Both sludge and hops can be efficiently removed from wort in whirl vats. The results of investigation carried out at six breweries show, that as far as filterability of wort is concerned there is no difference between ground and granulated hops of Czechoslovak origin. When the hop strainer is eliminated from the process, the wort can be easily pumped into the whirl vat with both coarse and cold sludge as well as hops. Separation in whirl vats is very effective, but with the increasing amount of sludge the losses of wort with sludge may slightly rise. It is therefore necessary to increase appropriately the settling time in vats.
(In Czech, English summary only)

Keywords: brewing process, hops, whirlpool, sludge

Published: August 1, 1975