Very Old Barton Kentucky Straight 90 Proof is a bourbon whiskey produced by the Sazerac Company. It is made from a mash bill of corn, rye, and malted barley and is aged for at least four years in new, charred oak barrels. It has a deep amber color and a sweet, oaky aroma. On the palate, it has notes of caramel, vanilla, and oak, with a hint of spice. The finish is smooth and mellow.