when it is charcoal mellowed again after reaching maturity – making it the only whiskey in the world to be charcoal mellowed twice, giving it ultimate smoothness. Gentleman Jack is full-bodied with fruit and spices, and its finish is silky, warm, and pleasant. When you drink Gentleman Jack, do so with pride, for this is the whiskey a gentleman orders.

 Gentleman Jack – 40% abv , the only twice charcoal mellowed whiskey in the world, no age statement on any JD products, we age to time (when the master tasters say its ready…typically, this is 4-6 years in a virgin American white oak toasted and charred barrel

http://www.jackdaniels.com/whiskey/gentleman-jack