Kentucky Vintage, Straight Kentucky Bourbon Whiskey is Distilled, Aged and Bottled in Kentucky at 45% alc./vol. (90 proof). Kentucky Vintage is a Handcrafted Original Sour Mash Bourbon. From a select few barrels, Kentucky's most skilled master distillers carefully hand-pick the very few Barrels that meet their criteria for Small Batch Bourbon. Like fine Cognac and great Chateau's, a limited few barrels become destined for greatness. This Bourbon has been allowed to age long beyond that of any ordinary Bourbon, giving it taste and flavor characteristics not found among other bourbons.