Jack Daniels Gentleman Jack Double Mellowed Tennessee Whiskey 750 MLThe Jack Daniels Gentleman Jack Double Mellowed Tennessee Whiskey 750 ML is an exceptionally smooth expression from the iconic Tennessee distillery. What sets it apart is its unique charcoal mellowing process not once, but twice. First, like all Jack Daniels Tennessee Whiskey, its mellowed drop by drop through 10 feet of sugar maple charcoal. Then, before bottling, it undergoes a second charcoal mellowing, giving the Jack Daniels Gentleman Jack Double