In recent years, Goose Island and its fast-growing barrel-aging program have produced five or six Bourbon County beers each winter. While the brewery had labels approved by the Alcohol and Tobacco Tax and Trade Bureau for a Proprietor’s aged in Scotch barrels and a beer called Maple Rye Stout that was a version of Proprietor’s (“Stout aged in bourbon and rye whiskey barrels with maple syrup, chipotle peppers and cacao nibs added,” according to the label), the beer aging in rye barrels wasn’t “ready for extraction when we tasted them, so those are continuing to age,” Jankoski said.