Jolly Pumpkin Artisan Ales

Jolly Pumpkin Artisan Ales is a brewery in Dexter, Michigan founded by Ron Jeffries in 2004. It operates three pubs, one in Ann Arbor, one in Detroit and the other in Traverse City. Jolly Pumpkin produces a variety of unfiltered and unpasteurized "rustic country" beers.

Jolly Pumpkin ages their beers in wine barrels which contain naturally occurring microbiological cultures including brettanomyces. These cultures produce a complex flavor profile in their beers, which includes flavors described as leathery, earthy, wild, funky, or even "sweaty horse hair character",[1] and which may approximate how some beer tasted before the advent of pasteurization and industrialization. This style of beer has been described as "farmhouse ale" or American wild ale.