The Facts on Sherry and Port: Fortify your knowledge on these versatile wines, writes Cara Devine

Ask any bartender about their sherry selection and their eyes will light up with a feverish passion. And port, once the preserve of red-nosed captains of industry straight out of a Dickens novel, has finally taken its rightful place on cocktail lists alongside the vermouths and quinquinas who have reigned as undisputed champions of the fortifieds for far too long.