Lagunitas Brewing's friends over at Kentucky’s own Willett Distillery have one kind of barrel: wood. And they put two things in them: Bourbon and Rye. Lagunitas was fortunate enough to get some of their Bourbon barrels, and they put their Imperial Stout in them. It’s a chocolatey, coffee-y, smoky, Bourbon-y beast of a barrel-aged thing. Word.