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Imperial IPAs (also referred to as Double IPAs) are a stronger, very hoppy variant of IPAs that typically have alcohol content above 7.5% by volume.

Imperial IPAs (also referred to as Double IPAs) are a stronger, very hoppy variant of IPAs that typically have alcohol content above 7.5% by volume. The Imperial usage comes from Russian Imperial stout, a style of strong stout originally brewed in England for the Russian Imperial Court of the late 1700s; though Double IPA is often the preferred name.

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