Michter's US*1 Sour Mash is a distinctive Kentucky whiskey, not a bourbon, made with a unique grain mix (less than 51% corn) and the sour mash process (using backset for consistency). Known for flavors of burnt sugar, spice, honeyed vanilla, and fruit, it's bottled at 86 proof, offering a malty, slightly savory profile that gained it "Whisky of the Year" for 2019 from The Whisky Exchange, and it's a popular, small-batch release.