Originally Posted by markm2151
BJCP classifies American IPA and then a double IPA. Is there a legitimate difference between a double IPA and an imperial IPA? Or is it just semantics?
BJCP does not classify a "double IPA." It classifies an "Imperial IPA." Most brewers write it "IIPA", and say it "double IPA", because there are double I's at the start. Straight from the guidelines: "The adjective “Imperial” is arbitrary and simply implies a stronger version of an IPA; “double,” “extra,” “extreme,” or any other variety of adjectives would be equally valid."
Just part of the brewing vernacular.