Gloria Hunniford, Angela Rippon and Julia Somerville are back to investigate more of the secrets of our shopping baskets. They look at how some supermarkets make it difficult to compare prices between products and work out the best deal, and examine what exactly goes into our sausages.

Plus, when a test on food packaging reveals even bodybuilders struggle to open some best-selling foods, an industry boss is put on the spot to have a go himself. And the team explore why water is added to so many everyday foods. Show less