As chief winemaker at Penfolds for a decade, responsible for Grange and the rest, Peter Gago holds unarguably one of the wine industry’s plum jobs. He’s also a master entertainer. I don’t think I’ve attended a wine tasting tutored by a more dynamic personality. Gago was constantly on the move, gliding up and down the floor of the ‘masterclass’ theatre at the London Wine Fair in May as if on stage at Wembley arena.