Cheap food is said to be of poor quality with wider implications for our health, has led us to become wasteful and has implications for the environment. Yet in this instructive debate filmed at the Battle of Ideas we learn there is much to celebrate about cheap food. In the 1930s for example, around 30 per cent of the average income was spent on food. Today, the figure is nearer 10 per cent. The terrific line-up of speakers who share their thoughts on this with us are: Rob Lyons, science and technology director, Institute of Ideas; Andrew Opie, director for food and sustainability, British Retail Consortium; Alex Renton, writer on food and food policy, author of Planet Carnivore and the chair is Justine Brian, director, Debating Matters Competition.