Jack Daniels 2020 Special Release Barrel Proof Rye is made up of 70% rye, 12% malt and 18% corn. The barrels were aged in the highest areas of a barrel house, resulting in a deep copper hue with robust aromas of deep smoke, raisin, rich caramel and toasted fruit; boasting tastes of molasses, sawn oak and bold rye spices with a peppery finish.