10 Interesting Beer Facts

on 07/11/10 at 12:39 pm

Beer

What’s in a glass?

Water, mostly. But also flowers, fungus and grains.

Beer gets much of its flavor from hops, which are vine-grown flowers that look more like mini-pinecones than daisies. The alcohol in beer comes from grain, usually barley, which is malted (or allowed to germinate) and then steeped in water to extract its sugars. Those sugars become a feast for yeast, the tiny, unicellular fungi that thrive on sugars and excrete alcohol.

Yeasts usually get filtered out of commercial beers before they’re bottled, but they leave traces (and flavors) behind. A study published in August 2010 in the Journal of Proteome Research found that beers contain a surprising variety of proteins: at least 62, 40 of which come from yeast. These proteins are key in supporting beer’s foamy head, the researchers noted.

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