We break down the differences between ABV and Proof and how they are measured.
Understanding the alcohol content in spirits and other alcoholic beverages have always been important. Back in the 16th century, the Royal Navy rationed a pretty staggering half a pint of spirits per day for sailors. They used gunpowder to measure the strength of spirits. Mixing gunpowder with rum with less than 57.17% ABV would not burn and was deemed' overproof'. Gunpowder mixed with rum with an ABV of 57.17% or higher, would burn and be deemed 'proof'.
We first covered what Alcohol by Volume (ABV) means when comparing different ABV's in the low and no alcohol market. ABV is a measure of the % alcohol in a liquid. Mixing 1 litre of pure ethanol in 200 litres of water would give an ABV of 0.5%, which can be considered alcohol-free or decolonised.
Proof is another measure of alcohol and is widely used in the United States. Similarly to ABV, proof measure the amount of ethanol is a drink and is actually calculated as double the ABV. So a 40% ABV spirit would be an 80 proof spirit.