Ron Jeffries

Jolly Pumpkin / Upland Persimmon Ship

Jolly Pumpkin Artisan Ales are notorious for its spontaneously fermented ales. Founded in 2004 by Ron Jeffries in Dexter, Mich., it has now grown to include two brewpubs – one in Ann Arbor and one in Traverse City. They pride themselves on only brewing beers using ingredients grown from the earth, they will not use any preservatives or chemicals. Every one of their beers are oak-aged and bottle conditioned and many are brewed with open air fermentation or spontaneous fermentation.