Spontaneous Ale aged in bourbon barrels. This spontaneously fermented beer gains a unique profile by fermenting and aging in bourbon barrels. After allowing the wort to rest overnight in our coolshipâa room-sized rectangular panâwe ferment and age it in bourbon barrels rather than the more traditional French oak wine barrels. Coolship Clermont features a bright copper hue and aroma of oak, malt, light funk, and citrus. Its robust flavor contains notes as varied as tropical fruit, lemon, and bourbon. Though the barrels come from Clermont, Kentucky, the beerâs soul is pure Maine