The Bourbon category has expanded by nearly one-third in the U.S. market since 2010, according to Impact Databank, and is closing in on 20 million cases, a level not seen in three decades.

“Kentucky will try to tell you if it’s not made in Kentucky, it’s not bourbon,” Lytton said ... selling liquid to other bottlers like Bulleit rye, George Dickel rye and Angel’s ...