Spent grain, malt culms and waste yeast are brewery by-products often used as feed for farm animals or production of some food products.
As substances contained in the by-products are part of the food chain, the breweries are obliged to monitor their contaminants, particularly aflatoxins B1, B2, G1 and G2 and heavy metals as lead, cadmium, arsenic and mercury, and fluorine.
Nutrition parameters as leached extract and proteins are analyzed in spent grain.
All standardly performed analyses are listed in the section Documents to download.
Analyses are performed in Analytical laboratories in Pivovarský ústav Praha (Brewing Institute Prague) and in Sladařský ústav Brno (Malting Institute Brno).