Rye whiskey Rye whiskey Rye whiskey can refer to two different, but related, types of whiskey: In the United States, "rye whiskey" is, by law, made from a mash of at least 51 percent rye. (The other ingredients in the mash are usually corn and malted barley.) It is distilled to no more than 160 U.S. proof (80% abv) and aged in charred, new oak barrels. The whiskey must be put in the barrels at no more than 125 proof (62.5% abv). Rye whiskey that has been aged for at least two years and has not been blended with other spirits may
American whiskey it is aged, it must be aged in used or uncharred oak barrels "at not more than 62.5% alcohol by volume (125 proof)". In practice, if corn whiskey is aged, it is usually aged in used bourbon barrels. Straight whiskey is whiskey that was distilled to not more than 80% alcohol by volume (160 proof) that has been aged for at least two years at a starting alcohol concentration of not more than 62.5%. It has not been blended with any other spirits, colorings, or additives. A straight whiskey that also meets one of the other above definitions is referred