Old Elk Straight Bourbon Sour Mash Reserve Small Batch 6 Yr 105 750 MLExplore the richness of tradition with Old Elk Straight Bourbon Sour Mash, a 6 year old small batch whiskey that delivers bold flavor and smooth complexity. Made using the classic sour mash processwhere a portion of a previous fermentation is used to start the nextthis bourbon highlights consistency and depth in every barrel. Bottled at 105 proof, Old Elk Straight Bourbon Sour Mash is crafted for whiskey lovers who appreciate powerful, yet balanced