Jim Beam Double Oak is first aged in a newly charred American White Oak barrels. Then, we pour it into another freshly charred white oak barrel to mature for a second time. The added interaction with the oak results in a liquid intense in flavor and smooth in taste. Jim Beam Double Oak takes bourbon aging to the next level by using a multi-barreled approach. It all starts with Jim Beam®, the World's #1 Bourbon. Then, after the traditional 4-year aging process, the bourbon is transferred to a second freshly charred American White Oak barrel and aged to taste. This second barreling allows the liquid to develop an even deeper level of intense, spiced oakiness and rich caramel, creating a truly unique bourbon whiskey.