Our Four Grain Bourbon story starts with two Colorado family farms where high quality corn and heirloom varietals of wheat, barley and rye are grown. Those grains find their expression during our labor-intensive cooking technique, bringing each grain’s individual character to life, while open-air sour mash adds soulful complexity. After four years in 53-gallon charred oak barrels, influenced by our high-altitude climate, an entirely novel bourbon unfolds.

In 2008, while aboard the ship of fellow Kentucky native and OCEARCH founder Chris Fischer, Jefferson's Master Blender Trey Zoeller got a wild idea. As he and Chris watched the whiskey swirl in their glasses, compelled by the constant rock of the waves, they pondered: what might happen to a barrel of bourbon if it were aged at sea? The rest, as they say, is history. The constant movement of the ocean and extreme temperature fluctuations as the OCEARCH traversed the globe completely transformed the whiskey. The result is a hyper-aged, darker, richer and caramelized bourbon with incredible depth and complexity. Since this discovery, Trey has sent hundreds of barrels around the world, with each voyage seeing (on average) over 25 ports, 5 continents, and 2 equator crossings.