Calumet Farm Single Rack Black 15 Year Old is the pinnacle of the Calumet Farm Bourbon family, representing the brand's highest-aged and highest-proof expression. Bottled at 105 proof (52.5% ABV), this Kentucky Straight Bourbon Whiskey is non-chill filtered for added depth of character and color.

All barrels used to craft these rare batches are aged a full 15 years in a single, center-cut rack within Kentucky-only rickhouses, allowing each barrel to develop rich, deep character with consistent aging conditions. The mash bill is 74% corn, 18% rye, and 8% malted barley, distilled and aged in Bardstown, Kentucky, and bottled by Three Springs Bottling Company in Bowling Green, Kentucky. Each batch is composed of just 19 barrels.

The bourbon presents a deep amber color with shimmering highlights of copper and sun-yellow. The nose opens with notes of oak and wood char, evolving after breathing into complex scents of dark fruit and sweet corn. The palate delivers bold flavors of oak, aged spice, and toasted grains, while toffee and a subtle smoky-sweetness roll across the tongue. The lingering finish mellows into sweet tobacco and rye flavors with a slightly dry mouthfeel. Availability is considered low and rare.