Koval Rye Whiskey Single Barrel "Bottled in Bond" is a distinguished and exclusive rye expression that embodies the very best of American whiskey traditions. Crafted in Illinois, this rye whiskey has been aged for a minimum of four years in a federally bonded warehouse, adhering to strict regulations governing "Bottled in Bond" spirits. It is then expertly bottled at precisely 100 proof, ensuring an exceptional and authentic experience for whiskey enthusiasts.