Jack Daniel's Single Barrel Barrel Proof Rye is whiskey as nature intended itÑÆbottled straight from the barrel at its full proof. With a grain bill of 70% rye, 18% corn, and 12% malted barley, our Barrel Proof Rye delivers charcoal-mellowed smoothness with the bold spice of rye. Barrel Proof Rye is bottled anywhere between 125 to 140-proof. This American whiskey is selected by the Jack Daniel's Master Distiller to best reflect the flavor which is impacted by handmade, toasted and charred, American oak barrels. These barrels are never mingled but bottled individually in very limited quantities, taking Jack's trademark vanilla and toasted oak flavors to bold new levels. This edition of Jack Daniel's Whiskey alcohol can be enjoyed neat, with a few ice cubes, or in your favorite mixed drinks like a Boulevardier. Live Freely. Drink Responsibly.