Year 2004 Barley Crop Assessment - Brewery Section.

Abstract

p. 78-82. Already for many years, the qualitative assessment of the quality of malting barleys crops carried out by the Malting institute in Brno has been accompanied by bench scale brewing of beers from the malts produced by brewery malt houses or commercial malting plants in the relevant growing areas of the Czech Republic. In 2004, the quality assessment for brewing purposes was extended by monitoring of varieties, so it was possible to compare not only the differences among individual growing areas but also the differences among the varieties. The spectrum of gained results is thus significantly wider than in the previous years. The quality of the barley from the 2004 crop is very good. From technological aspects the 2004 crop is characterized by a high filterability of all samples. The 2004 crop can be characterized by a low protein content in malts.The maximum degree of attenuation is more dependent on the growing area (malting plant), on the other hand, relative extract at 45 °C, diastatic power and nitrogen content are significantly more influenced by the variety used. The total content of polyphenols is also significantly dependent on the variety grown. From organoleptic point of view, the beers brewed from variety Jersey were assessed as the best; varieties Malz and Scarlett took the imaginary second place.p. 78-82. Already for many years, the qualitative assessment of the quality of malting barleys crops carried out by the Malting institute in Brno has been accompanied by bench scale brewing of beers from the malts produced by brewery malt houses or commercial malting plants in the relevant growing areas of the Czech Republic. In 2004, the quality assessment for brewing purposes was extended by monitoring of varieties, so it was possible to compare not only the differences among individual growing areas but also the differences among the varieties. The spectrum of gained results is thus significantly wider than in the previous years. The quality of the barley from the 2004 crop is very good. From technological aspects the 2004 crop is characterized by a high filterability of all samples. The 2004 crop can be characterized by a low protein content in malts.The maximum degree of attenuation is more dependent on the growing area (malting plant), on the other hand, relative extract at 45 °C, diastatic power and nitrogen content are significantly more influenced by the variety used. The total content of polyphenols is also significantly dependent on the variety grown. From organoleptic point of view, the beers brewed from variety Jersey were assessed as the best; varieties Malz and Scarlett took the imaginary second place