This year, the brewers have agreed to create an Imperial or Baltic Porter. This style is characterized by big rich malt and roast character (or not in the case of Baltic) and higher alcohol content than other styles of Porter. This year’s style will lend itself to complex beers with rich chocolate and coffee notes, and of course, a little bit of evil. In addition, this year’s attendees of the Great American Beer Festival can receive a Collaborative Evil map listing the participating breweries, their booth locations, and the unique ingredient/technique used. The emphasis for the brewers and the GABF attendees is simple…it’s meant to be fun. If you’re headed to the GABF seek us out. We’ll have temporary tattoos and a map of the festival floor to find all of the breweries.

Oakshire Brewing’s version, an Imperial Porter brewed with Black Strap Molasses and dark Brown Sugar, will be released in Oregon after Monday August 9th. Part of their Single Batch Series, Oakshire’s Collaborative Evil will have a short run before heading to Denver for the 2010 Great American Beer Festival.