Straight Rye Whiskey and Rosso Vermouth are blended into a Manhattan and then aged in oak barrels. After we taste and determine it is worthy to be labeled Barrelsmith, we then bottle at full strength, 35% ABV (70 proof). We source our aged whiskey from an award-winning distillery. Our own Rosso Vermouth is made from California wine grapes and natural flavors. Barrelsmith Orange Bitters are added after the barrel aging is complete to add a hint of a bright citrus taste. All-natural ingredients, no artificial flavors or colors added.