Bier 101 - How Beer Works

HowStuffWorks: Beer:

"Have you ever wondered what "malt" really is, and how you get malt from barley? And what about hops, and why d­o we need yeast? Barley, water, hops and yeast -- brewers combine these four ­simple ingredients to make beer.
But it's not just a matter of mixing the right amount of each ingredient and voila!...you have beer. A complex series of biochemical reactions must take place..."

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