"Brewmaster Ron Jeffries has been brewing professionally since 1995, and he opened Jolly Pumpkin Artisan Ales in 2004. With a focus on wild yeast open-fermented, oak-aged sour beers long before the style hit any sort of mainstream popularity, Jeffries is considered something of a craft brew pioneer. Today, Jolly Pumpkin has become a destination for sours and has expanded well beyond their brewery in Dexter (just outside Ann Arbor). They now have brewpubs in six cities across Michigan and even one in Chicago where you can get a flight of their signature sours. But the Ann Arbor location is special for its granite baked pizza made from a century-old sourdough starter." - Vox Creative