大象传媒

Charlotte Smith discovers how ingredients can be traced back to their source when there is a possibility of food contamination. She visits a small food manufacturers in Birmingham to hear where the ingredients for a frozen meal comes from.

Also, Anna Hill visits a Norfolk fruit and vegetable supplier to trace the origins of a courgette. And Charlotte Smith has a tour round East End Foods to see spices and grains being imported from around the world.

Presented by Charlotte Smith and produced by Emma Weatherill.