The Heaven Hill Heritage Collection 20-Year-Old Kentucky Straight Corn Whiskey is a special release in Heaven Hill’s premium whiskey lineup. This 2023 edition is made from a mashbill of 80% corn, 8% rye, and 12% malted barley, and is aged for 20 years, giving it a deep, rich complexity. Bottled at 115 proof (57.5% ABV), it offers a robust and intense flavor profile that reflects the long aging process in used bourbon barrels, as opposed to new oak, which is required for bourbon.