Heaven’s Door Cask Door Straight Bourbon is a unique and special expression created through a collaboration between Heaven's Door and select retailers across the country. This Cask Strength Single Barrel Bourbon is a testament to the diversity and complexity of American whiskey. Retailers handpicked barrels that vary in age, mashbill, and warehousing locations, resulting in a one-of-a-kind whiskey that showcases the rich tapestry of flavors found in bourbon.