How do you farm crocodiles? Kate visits Australia to find out and collects crocodile eggs from under their mothers' noses. Does cod liver oil have to be cod? Why do bagels taste different from bread?

Kate finds out why rosemary is in so many food products. Jimmy meets a man whose taste buds are insured for a million pounds, in of one of the UK's biggest tea producers. Plus: seaweed.

Should we keep coffee, tomatoes, potatoes and even red wine in the fridge? Kate finds out why eucalyptus is so good at clearing our airwaves. Plus: sauerkraut.

What are those worms doing in bottles of tequila? How do you stop carp tasting of mud? And what's the difference between tangerines, mandarins, satsumas and clementines?