Kvasny Prumysl, 1958 (vol. 4), issue 10
Economical advantages of metal casks in beer transport.Peer-reviewed article
J. KROUPA
Kvasny Prum. 1958; 4(10): 217-220 | DOI: 10.18832/kp1958027 
Based on economic data obtained from the brewery with annual sales of 640,000 hectoliters of cask beer, the economic analysis of the advantages of the use of metal casks instead of the wooden ones for transportation of beer was conducted. The authors concluded that labor productivity increased by 7.04% while saving 7.06% of the basic wage funds. Of costs savings, on average, CZK 2.474 falls on 1hl of the produced cask beer. (In Czech, English summary only)
Binding of atmospheric oxygen in beer.Peer-reviewed article
J. HUMMEL
Kvasny Prum. 1958; 4(10): 220-221 | DOI: 10.18832/kp1958028
While studying effects of oxidation on the final bottle beer quality, besides total atmospheric, also dissolved and residual air in the bottle neck must be studied. The analysis conducted in the study proved that the residual air in the bottle neck can be reduced up to 0.1 ml by mechanical foaming prior to closing the bottle. The author also mentioned the possibility of protection of beer against dissolving oxygen. Besides the increased care at bottling, it is mainly the use of CO2 at filling the bottles and pre-filling of pressure tanks. Use of carbonic acid obtained during fermentation in the brewery is recommended. (In Czech, English...
Study on yeast washing. Part I: The effects of water washing on yeasts and infectious microflora under operational conditions and in model experiments.Peer-reviewed article
J. ARPAI, O. JANOTKOVÁ
Kvasny Prum. 1958; 4(10): 223-229 | DOI: 10.18832/kp1958029
We studied the effect of stationary and flow water washing on brewery yeasts and pure tribes of brewers’ and bakers’ yeasts in terms of the cleaning effect, i.e. growing and fermentation capacity. The effects of washing conditions, namely the length and manner of the process, and temperature on the fermentation process were studied. The comparison of laboratory results of the efficiency of washing with the operational conditions showed the necessity of improving the efficiency of the washing processes in practice. The introduction of the flowing washing method can, if applied properly, bring the improvement, however only provided that a...
Potato tuber water as nutrition medium of fermentation processes.Peer-reviewed article
B. MÍČA, V. CHMELAŘ, J. MALCHER
Kvasny Prum. 1958; 4(10): 232-235 | DOI: 10.18832/kp1958030
Potato tuber water is a suitable nutrient medium for fermentation of molasses and starch waste. Nitrogenous organic compounds and minerals contained in water tuber accelerate fermentation of molasses mash and help deeper fermentation of starchy mashes. This knowledge can be used at combined starch-spirit production where current weak mashes could be enriched with sugar in molasses or concentrated waste starch, starch sludge, or wheat starch. This combination would substantially improve thermal economy of the combined production as instead of spirit content of mature mashes of 3-4 vol.%, the alcohol content of 6-8 vol.% in the mash could be also achieved...