Gregg Wallace explores the Jelly Bean Factory in Dublin to reveal the incredible processes it employs to make ten million colourful little sweets every day.Cherry Healey visits the University of Birmingham to learn about the important role glucose plays in our bodies, and she visits a lipstick factory to discover how one of the ingredients in jelly beans plays a key role in the production of her lippy.Historian Ruth Goodman is serving up the history of jelly and delves into the story of post-war pick‘n'mix.