Kvasny Prumysl, 2016 (vol. 62), issue 3
Vertical Refractometer for the Monitoring of Main FermentationPeer-reviewed article
Petr KOŠIN, Jan ŠAVEL, Adam BROŽ
Kvasny Prum. 2016; 62(3): 90-93 | DOI: 10.18832/kp2016014 
Fermenting beer samples usually have to be filtered and degased prior to refraction measurement with ordinary horizontal digital refractometer. The article deals with the use of vertical refractometer without the need to treat samples prior to the measurement. The volume of sample (50 ml) is sufficiently low as well as the duration of analysis is (around 1 minute per sample), which enables fast determination of the degree of fermentation needed to control the fermentation. Calculation formulas for the degree of fermentation from the refraction and original wort refraction are summarized.
Quality of Winter Barley Grain from the Testing Localities in the Czech Republic, Harvest 2014Peer-reviewed article
Lenka SACHAMBULA, Vratislav PSOTA, Olga DVOŘÁČKOVÁ
Kvasny Prum. 2016; 62(3): 94-98 | DOI: 10.18832/kp2016015
Samples of two studied winter barley varieties from 13 testing localities were analyzed according to the standard ČSN 46 1100-5. Based on the standard, sieving fractions over 2.5 mm, total admixtures, admixtures non-usable for malting, admixtures partly usable for malting, grains without hulls, grains with black tips and grains with the awn were assessed. Contents of nitrogenous substances and starch were 10.8 % and 63.9 %, respectively. Grain harvested in 2014 was bigger and even in size. Sieving fractions over 2.5 mm moved on average around 91.6 %. The year 2014 in terms of barley grain quality was very favorable, there was no problem with sprouting,...
From other journalsNot peer-reviewed article
Alexandr MIKYŠKA
Kvasny Prum. 2016; 62(3): 99-106
Abstracts of papers from scientifical and professional journals (In Czech).