Bulleit Bourbon 10 Year Old is Tom Bulleit's selected reserve. Aged in charred American white oak, a select number of Bulleit Bourbon barrels were set aside to age for 10 years to see how the already award-winning bourbon would develop. Tom Bulleit was thrilled to find the additional years resulted in a special expression of Bulleit that provides a rich, deep, incredibly smooth sipping experience maintaining the inherent character and high rye content for which the brand is best known.