Heaven Hill Select Stock Malt Whiskey Mezcal Barrel Finish is a distinctive and innovative expression that combines the best of both worlds – traditional malt whiskey and the unique flavors imparted by mezcal barrels. This limited edition whiskey starts with five barrels of malt whiskey, each aged for eight years, providing a mature and well-rounded base. The whiskey is then finished for an additional six months in previously used mezcal barrels, a process that infuses it with the signature smoky and earthy notes characteristic of mezcal.