Just like Jack Daniel’s Tennessee Whiskey and Jack Daniel’s Single Barrel, Gentleman Jack is Charcoal Mellowed before going into the barrel.
Twice mellowed:
Gentleman Jack, however, receives an additional "blessing" 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, you’ll always enjoy rich, rewarding taste.