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8 beers that you should not drink

Fish bladder, short for swim bladders of fish.

http://en.wikipedia.org/wiki/Isinglass
inglass finings are widely used as a processing aid in the British brewing industry to accelerate the fining, or clarification, of beer. They are used particularly in the production of cask-conditioned beers, known as real ale, although there are a few cask ales available which are not fined using isinglass. The finings flocculate the live yeast in the beer into a jelly-like mass, which settles to the bottom of the cask. Left undisturbed, beer will clear naturally; the use of isinglass finings accelerates the process. Isinglass is sometimes used with an auxiliary fining, which further accelerates the process of sedimentation.Non-cask beers that are destined for kegs, cans or bottles are often pasteurized and filtered. The yeast in these beers tends to settle to the bottom of the storage tank naturally, so the sediment from these beers can often be filtered without using isinglass.[SUP][citation needed][/SUP] However, some breweries still use isinglass finings for non-cask beers, especially when attempting to repair bad batches.
Although very little isinglass remains in the beer when it is drunk, many vegetarians[SUP][1][/SUP] consider beers that are processed with these finings (such as most cask-conditioned ales in the UK[SUP][2][/SUP]) to be unsuitable for vegetarian diets (although acceptable for pescetarians).[SUP][3][/SUP] A beer-fining agent that is suitable for vegetarians isIrish moss, a type of red alga also known as carrageenan.[SUP][4][/SUP] However, carrageenan-based products (used in both the boiling process and post-fermentation) primarily reduce hazes caused by proteins, but isinglass is used at the end of the brewing process, after fermentation, to remove yeast. Since the two fining agents act differently (on different haze-forming particles), they are not interchangeable, and some beers use both.
Isinglass finings are also used in the production of kosher wines, although for reasons of kashrut they are not derived from the Beluga sturgeon, as this fish is not kosher.[SUP][5][/SUP] Whether the use of a non-kosher isinglass renders a beverage non-kosher is a matter of debate in Jewish law. Rabbi Yehezkel Landau, in Noda B'Yehuda, first edition, Jore Deah 26, for example, permits such beverages.[SUP][5][/SUP] This is the position followed by many kashrut-observant Jews today.[SUP][citation needed][/SUP]
 
Yuck

I dunno how anyone drinks something that tastes as bad as beer

Unless they could make a beer that tastes like cherry coke or Dr Pepper .....
 
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