The newest expression of Jefferson’s Bourbon— Ocean Voyage 15, Special Wheated Mash Bill—represents the 15th voyage using the brand’s unique aging technique: mature bourbon barrels travel the world on a ship, stopping in 30+ ports and crossing the equator four times. For “Voyage 15,” as wheat is less flavorful than rye, there is a stronger brine influence from the rocking ship and ocean air, further amplifying the salt and caramel flavors without the spice of the rye. 90 proof.