Angel’s share during spirits aging in distilleries

Welcome to the fascinating world of wines and spirits! You may have heard of ‘The Angels’ Share’, which refers to the natural evaporation process that occurs during the aging of alcohol in barrels. The aging process is crucial in determining the final taste and quality of the product. This phenomenon is influenced by various factors and is particularly significant in cellars. We hope you find this information interesting and informative.

The term ‘angels’ has its roots in alchemy and refers to volatile compounds that escape from the barrels during this process. The Angels’ Share is the portion of stored spirit that evaporates over time due to various factors, such as temperature, humidity, air circulation, air pressure, barrel storage, cask size, and cask fill level.

At first thought, you might assume the larger the barrel the faster the evaporation rate. It is important to note that the size of the barrel plays a pivotal role in the evaporation rate, contrary to initial assumptions. Smaller barrels experience a faster evaporation rate due to a larger liquid-to-wood surface area exposed to air, facilitating the extraction of the Angels’ Share.

The storage environment plays a crucial role in the evaporation rate of spirits. In Australia, where high heat and humidity are common, the Angels’ Share is notably larger, ranging from 6-10% per year. These factors contribute to the unique flavor profile of Australian whiskey. In warmer climates like India, annual evaporation rates can reach 12%. However, in Scotland, the birthplace of Scotch whisky, the average annual loss is only 1-2%.

To be considered a Scotch whisky, it must mature for a minimum of three years. During this time, a small percentage of the volume is lost to the Angels’ Share, which is a natural part of the maturation process. This results in a product that is a testament to the time, skill, and dedication of the distillers. After 25 years of maturation in Scotland, a whisky can lose a significant amount of its volume, up to 25-50%, which adds to its exceptional value.

How does one account for Angel’s Share?

Every instance of production loss, irregularity, and imperfection is promptly noted and accounted for. Distillery ensures that every aspect of the production process is accounted for, resulting in a fair and accurate cost analysis. As the spirit ages, the Angel’s Share contributes to rising costs. The total cost of bottling, including storage, processing, bottling, and packaging, is then divided by the total net volume produced, resulting in a higher cost and wholesale/retail sales price. Marketing, transport, taxes, and margins are excluded.

In the world of spirits, the Angels’ Share is more than just a loss. It’s a sacrifice that enhances the richness and depth of the final product. With each passing year of maturation, the spirit becomes a symphony of time, flavor, and craftsmanship, culminating in a liquid gold that captivates the senses.