Consequences of climate change on the quality and stability of spirits – Part 3

Consequences of climate change on the quality and stability of spirits – Part 3

Wood maturation is a highly complex process, and many of its mechanisms remain only partially understood. Today, spirits professionals are increasingly concerned about how climate change may impact evaporation rates and the overall quality of barrel-aged eaux-de-vie. Can we anticipate and mitigate these effects?
This article outlines key insights into the ageing process, the challenges posed by global warming, and possible strategies to adapt—reducing evaporation while preserving the quality of the spirit.

Alcohol Contraction or Dilatation with temperature

Alcohol Contraction or Dilatation with temperature

During a temperature increase, volume of alcohols expands or conversely, during a temperature decrease, the volume contracts. The higher the alcohol content, the more pronounced this phenomenon becomes.
In the field of spirits, during production, for inventory management and bulk transactions, the measured volume can vary significantly due to temperature fluctuations. Therefore, it is essential to convert the measured volumes to 20°C for accuracy.
So how to calculate the volume at 20°C ?