# Calculating the ABV of Whiskey When Adding Water

## Calculating the ABV of Whiskey When Adding Water

Whiskey’s alcohol content is a crucial aspect of its taste, aroma and viscosity, and the alcohol content can be altered by adding water. Adding water to whiskey can help to open up its flavours and aromas, making it ‘easier’ to drink and appreciate, while also revealing new elements. However, it will also change the alcohol by volume (ABV) of the whiskey, and understanding how to calculate the ABV of whiskey when adding water is a key skill for any whiskey enthusiast.

The ABV of whiskey is the percentage of alcohol by volume in the liquid. This is calculated by dividing the volume of alcohol in the whiskey by the total volume of the liquid. The standard ABV for whiskey is between 40-50%, although some rare and premium whiskeys may have a higher ABV.

When adding water to whiskey, the ABV will change because the total volume of the liquid will increase, while the volume of alcohol remains the same. To calculate the new ABV, you need to know the original ABV of the whiskey and the amount of water added.

The formula for calculating the new ABV is as follows:

• ABV (final) = (ABV (initial) x volume of whiskey) / (volume of whiskey + volume of water)

To use this formula, you need to know the initial ABV of the whiskey and the volume of the whiskey before adding water. For example, if you have a 100ml bottle of whiskey with an ABV of 45%, and you add 20ml of water, the new ABV can be calculated as follows:

• ABV (final) = (ABV (initial) x volume of whiskey) / (volume of whiskey + volume of water)
• ABV (final) = (45 x 100) / (100 + 20)
• ABV (final) = 36%

In this example, adding 20ml of water to the 100ml bottle of whiskey reduces the ABV from 45% to 36%.

It’s important to note that the amount of water added can have a significant impact on the flavour and texture of the whiskey. A small amount of water can help to release the aromas and flavours of the whiskey, while too much water can dilute the whiskey and make it taste flat. The optimal amount of water to add will depend on the individual’s preference and the specific whiskey being consumed.

The formula for calculating the new ABV takes into account the initial ABV of the whiskey and the amount of water added. Adding water to whiskey can alter its flavour and texture, and the optimal amount of water will depend on personal preference and the specific whiskey being consumed.