What's the difference between white and dark rum? Are they made from different ingredients? Jimmy finds the answer in a Mauritius distillery. Back home, he learns where the term 'proof' originally came from: the answer's explosive, and it nearly blows Jimmy away! Jelly beans don't contain gelatine, so what is the jelly in a jelly bean? To find out, Kate visits the world's largest jelly bean producers, in California, at what may well be one of the world's most colourful factories. And fresh anchovies aren't salty, so why do tinned anchovies taste so salty? To find out, Matt goes on a remarkable night-time fishing trip off Italy's Amalfi Coast and visits an anchovy processing plant.