Vegetarianism and beer a yeasty flavour. Finings are used to clear the beer of yeast – there are a variety of agents used as finings, including silicon dioxide, gelatin, polyclar, and isinglass. Isinglass is the most common fining used to clear cask ale. Isinglass is produced from the swim bladders of fish, usually sturgeon, though also those in the polynemidae, sciaenidae and siluridae families; as it is an animal product, cask ale cleared with isinglass is not considered vegetarian. A brewer may also use some form of animal product in the later stages of beer processing, such as glycerol monostearate, which is used
Hair of the Dog Brewing Company is the beer that was once, twice and thrice frozen distilled. All of the times of distillation were observed and tasted. The brewery's Adam beer is a recreation of an Adambier, a historic brew that was originally made in Dortmund, Germany. This dessert beer has 10 percent ABV. Hair Of The Dog Brewing Company was profiled by master brewer Michael Ferguson on the show Beer Geeks which airs on OraTV Hair of the Dog Brewing Company Hair of the Dog Brewing Company is a brewery in Portland, Oregon, USA. Hair of the Dog produces unusual beers using traditional craft-brewing techniques.