Jimmy examines how plastic packaging is polluting the food chain with potentially global implications. Matt runs across a pond of custard. Is it possible to predict who will love or hate Marmite?

Jimmy visits Spain to see how much orange is in orange squash. In Canada, Matt finds out why maple syrup is so expensive. Kate reveals the surprising reason why so many of Britain's favourite biscuits have holes in them.

Jimmy heads to Portugal to learn about the battle against the hidden nuisance that leads to corked wine. In Cyprus, Matt solves the riddle of why cooking okra produces slime. Kate discovers the difference between runny and set honey.

In Scotland, Jimmy discovers how some whisky gets a smoky flavour. In Cyprus, Matt asks why halloumi cheese doesn't melt. In France, Kate visits the world's largest sweetcorn factory to see how they get the corn off the cob so neatly.

Jimmy investigates shrinkflation. Kate reports on the crisis within the British dairy industry. Matt looks at the pricing of British strawberries. Also, how technology can help consumers stay ahead in the pricing game.