The original Kentucky straight. Sour mash. Est. 1835. Dr. Crow enjoyed a great glass of bourbon, that's why he invented the sour mash process. But he was extra picky about the bourbon he served to those considered his closest friends. Old Crow Reserve is aged a full year longer and distilled to a higher proof. Perfect for good friends. Cheers. Aged for a full 4 years in new, charred white oak barrels. 43% alc/vol (86 proof).