Jimmy Doherty heads to Portugal to learn about the battle against the hidden nuisance that leads to corked wine, while in Cyprus, Matt Tebbutt solves the riddle of why cooking okra produces tonnes of slime. Plus, Kate Quilton looks into the surprising difference between runny and set honey.

The team investigate why some supermarket food prices have soared this year, and reveal how technology can help us save money, from dynamic pricing to innovative packaging.