Regarded by some as the best single barrel on the market, Elmer T. Lee Single Barrel Sour Mash is a staple in the cupboards of bourbon enthusiasts everywhere. At 90 percent proof and an average age of between 8 and 14 years, this subtle bourbon goes to show that super high ages aren't always necessary for a beautiful flavor profile. With a highly drinkable medium body and gentle delivery for a rye mash, this bourbon makes for the perfect sipping spirit.