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
Dried and salted cod Other names include "ráktoguolli/goikeguolli" (Sami), "klipfisk/klippfisk/clipfish" (Scandinavian), "stokvis/klipvis" (Dutch), "saltfiskur" (Icelandic), "morue" (French), "saltfish" (Anglophone Caribbean), "bakaljaw" (Maltese), "labardan" (Russian). The fish is beheaded and eviscerated, often on board the boat or ship. (This is feasible with whitefish, whereas it would not be with oily fish.) It is then salted and dried ashore. Traditionally the fish was sun-dried on rocks or wooden frames, but modern commercial production is mainly dried indoors with electrical heating. It is sold whole or in portions, with or without bones. Prior to the collapse of the Grand Banks (and other) stocks due to overfishing, salt