By now, the sour beer craze has become ubiquitous enough that a quick stop at Whole Foods typically yields at least a dozen puckering finds. Chances are you've sampled some tart brews from our own backyard, a trend locally spearheaded many years ago by Russian River Brewing. There is, however, a category of sour beers that is largely unrepresented in domestic production. This weekend, you'll have a shot at tasting a solid list of some of these truly wild, terroir-driven beers.
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