At what percentage of alcohol by volume does a 1.5 oz. serving of whiskey typically sit?

A 1.5 oz. serving of whiskey typically has an alcohol by volume (ABV) percentage of around 40%. This is the standard ABV for most whiskeys, including bourbon and Scotch. The reason this percentage is significant is that it has become the industry norm, ensuring consistency in flavor and intensity across different brands and types of whiskey.

This percentage allows whiskey to have a strong character while still being enjoyable and drinkable. The balance of alcohol content also complements the flavors inherent in the grain, aging process, and added ingredients without overwhelming the palate. As a result, bars and restaurants across the globe often serve whiskey at this ABV level, making it a recognizable standard among spirit enthusiasts.