Iceland's signature alcoholic beverage is "brennivín" (literally "burnt distilled wine"), which is similar in flavouring to the akvavit variant of Scandinavian brännvin. It is a type of schnapps made from distilled potatoes and flavoured with either caraway seeds or angelica. Its potency has earned it the nickname "svarti dauði" ("Black Death"). Modern distilleries on Iceland produce vodka (Reyka), gin (Ísafold), moss schnapps (Fjallagrasa), and a birch-flavoured schnapps and liqueur (Foss Distillery's Birkir and Björk). Martin Miller blends Icelandic water with its England-distilled gin on the island. Strong beer was banned until 1989, so "bjórlíki", a mixture of legal, low-alcohol pilsner beer and vodka, became popular. Several strong beers are now made by Icelandic breweries.