Calumet uses hand-selected barrels from a large private stock of premium Kentucky straight bourbon whiskey. The mash bill is traditionally known as a ‘high-rye’ mixture. They use extremely small batches of just 19 barrels for Single Rack Black program. All barrels used are aged in a single, center cut rack from the ideal maturation location and conditions inside the rick house. This expression of the Calumet Farm Bourbon family is a true convergence of craftsmanship and flavor. It is non-chill filtered for added depth of character and color. The result is a bold, yet smooth flavor that presents well, whether neat, over ice, or in a classic cocktail.