The food industry is increasingly in the spotlight as consumers and government worry about obesity, sustainability and safety.

Evan Davis finds out from three very different food companies about how their supply chains work and how much oversight any company leader can have. Guests discuss how to create an efficient and cost effective system that delivers on quality and safety. Do consumers elsewhere in Europe and the world demand the same level of locally-sourced credentials as the British now do and are these ideals worthwhile?

Guests:

Producer: Lucy Proctor.