When it comes to the aging process of bourbon, there is an inevitable loss of liquid known as the “angel’s share”. This phenomenon occurs as the bourbon matures in oak barrels, and evaporation takes place over time. It is fascinating to explore just how much bourbon is lost during this magical transformation.
The Impact of Aging on Bourbon
Bourbon aging is a complex and intriguing process, one that involves both chemical reactions and natural evaporation. As the bourbon rests in the barrels, it interacts with the wood, absorbing flavors and developing its unique character. However, alongside this development, there is also a gradual loss of liquid that occurs.
The Angel’s Share
The term “angel’s share” refers to the percentage of bourbon that evaporates during aging. While it may sound poetic, it can be disappointing for bourbon enthusiasts to learn that a significant portion of their beloved spirit is lost over time. On average, a good bourbon is likely to lose around thirty to forty percent of its original volume during the aging process.
The Role of Barrel Size
Interestingly, the size of the barrels used for aging can influence the amount of bourbon lost. When smaller-sized barrels are utilized, there is a larger surface area or amount of wood barrel in contact with the bourbon. This increased contact leads to more evaporation and, subsequently, a higher percentage loss of volume compared to whiskey aged in larger barrels.
The Duration of Aging
Another crucial factor to consider is the length of time bourbon spends in the barrels. The longer the aging process, the more opportunity for evaporation and liquid loss. Consequently, bourbons that have been aged for several years will experience a greater reduction in volume compared to those aged for shorter periods.
The Importance of the Angel’s Share
While it may seem disheartening to lose such a significant amount of bourbon during aging, the “angel’s share” serves an important purpose. The evaporation allows for the concentration and intensification of flavors within the remaining liquid. It also contributes to the smoothness and complexity that bourbon connoisseurs appreciate in their favorite spirits.
Factors Affecting Evaporation
Several factors influence the rate of evaporation and, consequently, the amount of bourbon lost during aging. These factors include temperature, humidity levels, and the location of the aging warehouse. Distilleries situated in hotter climates tend to experience higher levels of evaporation compared to those in cooler regions.
The Aftermath of Aging
Once the bourbon has aged to perfection, the distiller carefully monitors the remaining liquid, ensuring it maintains its desired characteristics. Any excessive loss during aging could impact the final flavor profile and quality of the bourbon, highlighting the importance of the aging process and managing the angel’s share effectively.
Controlling Evaporation Loss
Distilleries employ various techniques to minimize the impact of evaporation during the aging process. This includes sealing barrels tightly and utilizing storage facilities with controlled temperature and humidity levels. While it is impossible to completely prevent the angel’s share, these measures help maintain consistency in flavor and minimize liquid loss.
Embracing the Essence of Bourbon Aging
The aging process of bourbon is truly a labor of love, with distillers carefully guiding the spirit through a transformation that results in a delightful and refined final product. While there is a notable loss of liquid, this sacrifice is essential for the development of exquisite flavors and the unique characteristics that we associate with fine bourbon.
Appreciating the Angel’s Share
When sipping on a well-aged bourbon, it’s important to acknowledge the angel’s share and the role it plays in creating that extraordinary drinking experience. It reminds us of the craftsmanship, patience, and dedication that goes into producing this cherished spirit and adds a touch of intrigue to every glass.
Conclusion
In conclusion, the angel’s share refers to the percentage of bourbon lost through evaporation during the aging process. On average, a good bourbon can lose around thirty to forty percent of its original volume. Factors such as barrel size, aging duration, temperature, and humidity influence the rate of evaporative loss. While it may seem like a significant amount, the angel’s share contributes to the concentrated flavors, complexity, and smoothness that make aged bourbon so enjoyable. So, the next time you raise a glass of well-matured bourbon, remember to appreciate the angel’s share and savor every precious drop.
