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
Institute of Brewing and Distilling Guild, which changed its name to the Brewers' Guild in 1929. The Guild and the Institute merged to form the Institute and Guild of Brewing (IGB) in 2001, which was later renamed as the Institute of Brewing and Distilling in 2005. The mission of the institute is to inform and educate member brewers and distillers in commercial industry. This is done by: As the IBD traditionally served the British brewing industry, there are four geographical sections within the UK: With the decline in the British brewing industry and the rise in the amalgamation in the brewing industry across the globe