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In the grain samples of five malting barley varieties harvested in 2011, the amount of basic components as well as physiological characteristics of barley were determined. These samples were micromalted and resulting malt was analyzed mainly according to the European Brewery Convention (EBC) and the Mitteleuropäische Brautechnische Analysenkommission (MEBAK) methodologies. The same samples of malting barley grain and also samples of malt were placed in polyethylene bags, from which the air was exhausted and they were further stored at 4 °C until 2016. In 2016, grain and malt samples were subjected to the same analyses as in 2011. Results were statistically evaluated by t-test of dependent samples. Most of the monitored parameters has remained at the same level as in 2011 or has slightly improved. The exception was statistically very highly significant decrease (P ≤ 0.001) of friability and increase of amount of whole and partly unmodified grains. Under conditions described, long-term storage of malting barley grain has not significantly negatively affected its germination. Long-term storage of malt has had not a significant negative impact on its quality too.Vo vzorkách zrna piatich odrôd sladovníckeho jačmeňa, zozbieraných v roku 2011, bolo stanovené množstvo základných obsahových látok a stanovené boli tiež fyziologické znaky jačmeňa. Vzorky zrna boli zosladované a následne vyrobený slad bol analyzovaný najmä podľa metodík EBC a MEBAK. Tie isté vzorky zrna jačmeňa a vzorky sladu boli uložené do polyetylénových vreciek, z ktorých bol odsatý vzduch a boli ďalej skladované pri teplote 4 °C až do roku 2016. V roku 2016 boli vzorky zrna jačmeňa a sladu podrobené rovnakým analýzam ako v roku 2011. Výsledky boli štatisticky spracované pomocou párového t-testu. Väčšina sledovaných znakov zostala na rovnakej úrovni ako v roku 2011 alebo sa mierne zlepšila. Výnimkou bolo štatisticky veľmi vysoko preukazné zníženie (P ≤ 0,001) hodnoty friability a zvýšenie množstva sklovitých a polosklovitých zŕn. Dlhodobé skladovanie zrna sladovníckeho jačmeňa nemalo za popísaných podmienok štatisticky preukazne negatívny vplyv na jeho klíčivosť. Taktiež dlhodobé skladovanie sladu nemalo výrazne negatívny dopad na jeho kvalitu

The effect of long-term storage on quality of malting barley grain and malt