Proof (Zymology)

Proof in zymology refers to measuring the alcohol content in fermented beverages like spirits and beer. It indicates how strong the alcohol is, originally used to estimate potency by comparing the amount of alcohol to water. In many countries, proof is calculated as twice the percentage of alcohol by volume (ABV). For example, a beverage with 40% ABV is 80 proof. This measurement helps producers and consumers understand the strength of the drink, ensuring proper labeling, quality control, and adherence to legal standards.