Coal Mine Aged Single Barrel Kentucky Straight Bourbon Whiskey. This expression from the Brothers Wright Distilling Co. line features our four-grain mash bill. With a hand selected grain lineup of 67% Corn, 17% Red Wheat, 8% Rye, and 8% Malted Barley, put in the bottle at the same proof it comes out of the barrel, you can expect a sweet, and complex flavor profile. On the nose, you’re instantly hit with notes of freshly baked cherry pie, crisp summer apples, and a savory buttered popcor