27 CFR Part 5 -- Labeling and Advertising of Distilled Spirits
When you pick up a bottle of whisky, the label always features two numbers followed by "% ABV" (Alcohol by Volume). While it might seem like a simple metric, the alcohol content tells a detailed story about how the whisky was made, how it was aged, and how it should taste. alcohol content in whisky
To understand the numbers, you have to look at the production timeline. 27 CFR Part 5 -- Labeling and Advertising