OLD FORESTER SINGLE BARREL 100 PROOF STORE PICK BY BARREL HEADS LIQUOR STORE. Every fingerprint is unique. The same is true for every barrel of bourbon. Old Forester Single Barrel has bottles from one individual barrel, so there is no other bourbon exactly like it. Old Forester Single Barrel is crafted using the time-honored methods established over 140 years ago. Depending on the whiskey barrel selected and the angel’s share lost to evaporation during aging the barrel