They say you eat with the eyes. But we now know that smell, texture, temperature, colour and even atmosphere – down to the background music – influence how we perceive flavour.As anyone who has lost their sense of taste will know, flavourless food is dull and monochrome - it is flavour that brings food into full technicolour life. Yet it's not always easy to make something tasty; the secrets to flavour can baffle chefs and scientists alike.Food science expert Dr Stuart Farrim...