Food Unwrapped

Jimmy's off to Israel on the trail of the fresh date. If raisins are dried grapes and prunes are dried plums, then what exactly are dates? Kate meets a sausage maker from Belfast, whose sales suffered after processed meat had been linked to cancer.

Kate visits Vietnam, the world's largest exporter of black pepper, and learns the difference between black and white pepper. Jimmy meets a man whose job is harvesting different strains of yeast from multiple locations across the globe.

In Seville, Jimmy looks for the mysterious ingredient that gives marmalade its bitter tang. Kate investigates sustainable fish. She learns that even farmed smoked salmon aren't considered fully sustainable.

Jimmy takes to the skies above Israel, as he joins the battle to protect the bell pepper crop from its fiercest predator, the Mediterranean fruit fly. Kate investigates premium-priced manuka honey, which is marketed for its anti-bacterial properties.

Kate learns exactly how coconut oil is extracted, and if it's really healthier than other oils. To find out exactly what goes into a supermarket jar of artichoke hearts, Jimmy visits one of Europe's largest producers in Italy.