Introducing Jack Daniel’s 14-Year-Old Tennessee Whiskey. This marks the first time since the early to mid-1900s that Jack Daniel’s has offered an expression at this age. The ingredients and whiskey-making process are the same as Jack Daniel’s Tennessee Whiskey—80% corn, 12% malted barley, and 8% rye, charcoal-mellowed drop by drop before entering the barrel. Evolving Jack’s past aged-stated whiskey process, these barrels aged in the upper floors of our barrelhouse and then were relocated to the lower ricks to extend the aging process. After aging, the barrels were expertly blended and bottled at barrel-proof, creating a liquid that proves legends aren’t made overnight; they’re crafted over time.