The team ask: is mouldy bread safe to eat? Kate's on the trail of the chicken that goes into a Kiev. And Matt is puzzled: how can supermarkets sell English summer apples in the middle of winter? Jimmy travels to specialist cheese cellars in the south of France where mould is specially grown - to be eaten - before heading to Edinburgh to meet Britain's leading mould expert. Using specialist microscopes, Jimmy gets a unique insight into mould taking hold of bread to find out the difference between mould that is safe to eat and mould that can contain one the most deadly toxins known to man. Which is on your bread? Next the team head to Kiev in Ukraine to find out what part of a chicken makes a chicken Kiev. In a factory that processes around half a million birds a day Kate learns that a surprising number of chickens could end up in a single Kiev, and discovers how left-over chicken carcasses are turned into an unlikely food product.