Mmm...Beer!

I stumbled across this article in the NY Times about how geology has effected the production and taste of beer for centuries. "Beer is more than 90 percent water, and because almost all brewers use water from wells, not rivers or lakes, the different styles of beer were traditionally derived from the rocks that the breweries sat upon." Fascinating article about the origin of beer, how brewers had to change how they made beer (or the ingredients) because of geology, and what makes each beer different. [NYT]