Duff beer goes on sale in Britain © REUTERS/Stringer Mexico One of television's best-known fictional drinks - Duff beer, made famous as the favoured tipple of Homer Simpson - is to go on sale in the UK. The Legendary Duff Beer looks similar to the American brand, but is brewed in Germany. It has been available in some other parts of the world for some time, but has only been released in the UK to celebrate the 500th episode of The Simpsons.