Alston Works in leafy north London was once a dental factory producing everything from orthodontic equipment to toothpaste. Now the industrial estate in High Barnet is home to one of the UK’s most innovative chefs and a culinary experience for all the senses. Perhaps most interesting of all its residents is Michelin-trained chef Jozef Youssef, who founded Kitchen Theory in 2010, and works closely with Professor Charles Spence – a specialist in multi-sensory food perception and head of Oxford’s Crossmodal Research Laboratory.