Alcohol described as “100 proof” signifies a particular focus of ethanol. The proof quantity is twice the proportion of alcohol by quantity (ABV). Due to this fact, a spirit labeled as 100 proof accommodates 50% alcohol. This normal is often used for whiskeys, vodkas, gins, and different distilled spirits. For instance, if a bottle of bourbon is marked as 100 proof, it signifies that half of its quantity is pure alcohol.
The “proof” system has historic roots, originating from a way used to evaluate the alcohol content material of spirits. Previously, spirits have been examined by soaking gunpowder with the liquor and trying to ignite it. If the gunpowder ignited, it was thought-about to be “proof” that the spirit contained a passable quantity of alcohol. Whereas the trendy system makes use of ABV measurements, the time period “proof” stays a regular option to talk alcohol power to shoppers. Spirits at this power provide a noticeable depth and are sometimes most popular in cocktails or loved neat by those that admire a bolder taste profile.