Background: Czech beers are unique because they are brewed using specific technology at a particular latitude and for being entirely produced in the area of the Czech Republic. The purpose of this work is the evaluation of toxicological effects of a variety of freeze-dried Czech beers. their raw materials (malts. hops and yeast) and processed-beer (wort. https://allfixelectricales.shop/product-category/fridge-light-fan-switch/