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The investigations of buckwheat malting and its usage for brewing were driven by the rising market demand for gluten–free beer. This has been extensively studied, leading to the conclusion that it is impossible to brew beer from 100% buckwheat malt without additional support from the added enzymes. The main problem was the resulting viscosity which has caused the rejection of this valuable raw material. Such an approach has led to the unjustified marginalization of this type of malt in brewing. As buckwheat malt also contributes to antioxidant activity when used in food formulation, it was reasonable to study its potential application in brewing. This study evaluates the top and bottom fermentation process conducted on 20% of commercially available buckwheat malt contribution. Such a contribution delivers the viscosity of wort within the acceptable range which does not cause further filtration problems. Sensory analysis revealed the high acceptability of the resulting beer, pointing simultaneously to the insufficient guidelines for assessments of such a novel beer.
This article offers a short introduction to electron spin resonance (ESR) spectroscopy and how it can be used to monitor a brewing process. The technique is commonly used to detect radicals food and beverages and assess beer flavor stability. With sufficient standardization, ESR is an easy and versatile tool to detect production defects from wort to beer and evaluate changes in the production line.
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Milled corn products in worts production

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The object of this study was to assess the effect of malt substitution with maize products and kind of malt on the properties of laboratory worts. The experimental materials in the study were laboratory worts obtained from barley malts of the Pilzen type (produced by two Polish malthouses) and milled corn products: maize grits (500-1250 μm) and fine maize grits (250-750 μm). The unmalted raw material was subjected to gelatinization and added in proportions of 20, 30 and 40%. The reference materials were worts manufactured from malt without unmalted ingredients addition. Significance of worts features diversification was determined statistically. It was proved that malt substitution with milled maize products can improve properties of laboratory worts obtained from malts of lower quality, like increasing extract content and mash extractivity. The worts produced with 20, 30, and 40% of milled corn products addition show lower contents of soluble nitrogen, free amino nitrogen and lower degree of apparent final attenuation, but they can be easier filtrated and are characterised by lighter colour, in comparison to worts obtained without unmalted ingredients.
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