Pure Kentucky XO Small Batch Straight Bourbon Whiskey is an authentic Kentucky straight bourbon. Aged for about twelve years ("XO" meaning "extra old"), Pure Kentucky is bottled at an unusually robust proof of 107, yet is remarkably smooth and drinkable. The bourbon has an intense aroma of sweet vanilla, cedar and oak. The aroma yields to notes of spicy rye, vanilla and maple syrup, with hints of cherry. The slightly salty finish is long and smooth, with continued vanilla notes.