Up for sale are two of the most sought-after releases from the world-renowned Side Project Brewing: Derivation Batch 20 and Derivation Batch 21. These are rare, masterfully blended Imperial Stouts aged in select Bourbon barrels. Lot Details: Contents: 1x Derivation Batch 20 + 1x Derivation Batch 21. Volume: 2 x 750ml bottles. ABV: 15%. Condition & Storage: Both bottles are in pristine/mint condition, with labels and seals fully intact. Since their release, they have been STORED IN A COOL, DRY, AND DARK PLACE at a constant cellar temperature to ensure the complexity and integrity of the beer are perfectly preserved. A rare opportunity for any serious collector or stout enthusiast to acquire these top-tier expressions of American barrel-aging.