A stout brewed in England. It was originally brewed for the Czars and was sent to St. Petersburg.
Also known as Russian Stout, a very strong dark fruity brew. Imperial Stout either from England of Finland, was said to be the favorite brew of the Czars.
Extra-strong stout (alcohol content often above 10% vol.) first popular in Czarist Russia.
Imperial stout, also known as "Russian Imperial Stout" or "Imperial Russian Stout," is a strong dark beer or stout that was originally brewed by Barclays brewery in London, England for export to the court of the Tsar of Russia. It has a high alcohol content (nine or ten percent is not uncommon) intended to preserve it during long trips and to provide a more bracing drink against cold climates. The colour is very dark, almost always opaque black.