What is the angels’ share?
The well-known term refers to the portion of whisky that evaporates from the cask during aging. As highlighted in our ‘role of a regauge’ blog last month, as whisky matures in barrels, a small amount of alcohol evaporates through the porous wood, along with some water.
This evaporation is typically no more than 2% alcohol by volume (ABV) per annum. This is referred to as the angels’ share.
In recent years, concerns have also been raised about the environmental impact of this evaporation. But luckily a report in 2023 by the SNP government deemed the risks to be ‘minor’.
Why should I care?
For anyone looking at how to invest in whisky, understanding the impact of the angels’ share is important. This is because it affects the quantity and quality of the whisky remaining in the cask over time.
While any evaporation can result in a reduction in volume, it also concentrates the flavours and character of the whisky, potentially increasing its value.
Understanding the angels’ share will help investors gauge the expected yield and profitability of their whisky cask investment over time. It’s a natural and normal part of the whisky aging process, and all adds to the mystique and allure of this alternative asset class.