World food prices are at a record high and show no sign of abating, according to the United Nations. A monthly index compiled by the UN reached its highest point since records began in 1990, with the rising price of food feeding into inflation – already a growing concern in the UK. UK food inflation has risen from 1.9% in June to 5.5% in November, and will present a significant threat to operators’ margins in the coming months. Before Christmas coffee prices hit a 13-year high with sugar prices also surging due to poor harvests and adverse weather.