About American Double / Imperial IPA
Double India Pale Ales (also abbreviated as Double IPAs or IIPAs) are a strong, very hoppy style of pale beer. Also known as Imperial IPAs, perhaps in reference to the Russian Imperial Stout, a much stronger version of the English Stout, these beers are essentially India Pale Ales with higher amounts of malt and hops. Double IPAs typically have alcohol content above 7% by volume.