The term “sour beer” is one of the biggest misnomers in the beer world. While some beers made using mixed culture fermentation are mouth-puckeringly tart, others are funky, earthy, and infinitely complex. Last year, Fair State’s Mixed Culture festival showcased their own unique recipes. This year they’ve invited others to the party. Locals like Sociable Cider Werks and Surly will have beers available. But the big draw will be the chance to try out-of-state breweries that aren’t otherwise available here, such as Half Acre, Threes, and Jester King. Fair State will feature more than a dozen of their own beers, and a dozen breweries in total will be pouring throughout the day. Tickets and more info can be found at www.eventbrite.com. 21+. Sessions are from noon to 4 p.m. and 5 to 9 p.m.