http://www.theregister.co.uk/2010/02/16/sink_the_bismark/

Scots unleash world’s strongest beer

………..41% ABV ‘Sink the Bismarck’ torpedoes German rival

‘A Scottish brewer appears to have torpedoed a German rival’s claim to the world’s strongest beer, by bottling a “quadruple IPA” weighing in at a liver-bashing 41 per cent ABV.’