Premier Drams Single Barrel American Whiskey #20421 102.2 proof - Selected by Jack RoseAge: 7 years old Proof: 102. 2 Barrel: ex Bourbon Barrel Mash bill: Traditional rye mash bill Tasting Notes: This may be the most unique whiskey I've tasted all year. It's pure lemon pie! This barrel is so different and delicious. There's a brightness that you don't find in many whiskies. That lemon oil and brown sugar is backed up by baking spice and graham cracker notes.