Take four London bartenders, each showing off a home-made vodka creation in their own bar, add some secret scoring and off-the-cuff cocktails, and you get a bar crawl that’s almost good enough for TV. Clinton Cawood follows our hopefuls to keep tabs on the scores

Hollywood big-shot's vodka brand launches in the UK

What makes Tony Conigliaro’s cocktails tick? Alice Lascelles took a group of inquisitive bartenders, armed with ideas, to his new cocktail lab to find out...