My Florentine meeting with Leo Crabtree, the owner of Beaufort London, started not with perfumery. There was a big black bottle with a silver label named Beaufort London Gin on his stand. It turned out, Leo's new brand will produce an English gin with a special strength, called Navy Strength (57%). This gin used to be tested, according to Leo, like this: Some gin would be poured on gunpowder, a...