Angela Rippon, Gloria Hunniford, and Julia Somerville investigate more stories to do with food, discovering why it is feared up to 90 per cent of the fridges in our homes may not be working efficiently, or safely. They give advice on how to put things right. Also today, after complaints teetotallers get a raw deal from pubs and bars, a test explores if drinkers can tell the difference between a beer with alcohol and one without. Plus the new-style biscuits that could cost you more for less. How will they fare in a dunking test compared with more traditional treats?