American imperial stout aged for 2 years in Irish Whiskey barrels [This version is distinct not because it spent two years in barrels, but because it is Irish Whiskey barrel aged instead of bourbon barrel aged. The name of the beer is "2-Year Barrel Aged American Imperial Stout". If in the future there is a 1 or 3 year barrel aged version of this beer also in Irish Whiskey barrels, it should be aliased. -GT2]