I'm trying to understand what I can assume about an "Imperial Stout" relative to a "Stout," etc.
I know anecdotally that they are "heavier," but online sources seem to lack agreement on a specific meaning, with some suggesting that they're hoppier, others saying they're higher alcohol content, and some using vague terms like "full-bodied".
Does "imperial" have a real, agreed-upon meaning, or is it just a marketing/description modifier that everyone uses differently?
