Lager - it's both the world's most loved and most maligned of beers, enjoyed by billions the world over but often sneered at by beer aficionados. But lager is much more than just generic brands. The history of styles of lager around the world is a fascinating one, full of urban myth and legend. Did you know pilsner's forebears were spawned by industrial espionage (involving syringes in umbrellas to steal yeast samples)? Or that the world-famous Louis...