Double barrel bourbon refers to the process of aging bourbon in two separate barrels, often referred to as a secondary or finishing barrel. This additional step in the aging process can have a significant impact on the flavor profile of the bourbon, resulting in a more complex and nuanced tasting experience.
One of the key factors in the production of bourbon is the aging process, where the spirit is matured in charred oak barrels. These barrels play a crucial role in imparting flavors to the bourbon, as the wood interacts with the liquid over time. The charring of the barrels caramelizes the sugars in the wood, creating flavors such as vanilla, caramel, and toasty notes.
When a bourbon is double barrel aged, it undergoes an additional period of aging in a different barrel. This second barrel can be made of a different type of wood, such as a wine barrel, or it can be a new charred oak barrel. The bourbon is transferred from the initial barrel to the secondary barrel, allowing it to further develop and acquire new flavors.
The process of double barrel aging allows for more interaction between the bourbon and the wood, resulting in a more pronounced flavor profile. The secondary barrel can add additional layers of complexity, introducing flavors such as fruit, spice, or even subtle wine or whiskey notes from the previous contents of the barrel.
Personally, I have had the opportunity to taste several double barrel bourbons, and I have found that they often exhibit a greater depth and richness compared to their single barrel counterparts. The additional aging in a different barrel seems to enhance the overall flavor profile, creating a more well-rounded and complex bourbon.
It is important to note that the impact of double barrel aging can vary depending on the specific bourbon and the characteristics of the secondary barrel used. Different types of wood or previous barrel contents can impart different flavors and aromas to the bourbon, resulting in a wide range of possibilities.
Double barrel bourbon offers a unique and often more complex tasting experience compared to single barrel bourbons. The additional aging in a secondary barrel allows for further flavor development and can introduce new and interesting elements to the bourbon. However, the ultimate preference for double barrel bourbon versus single barrel bourbon comes down to personal taste and the specific characteristics one is seeking in their bourbon.