Food Unwrapped: Season 17, Episode 4

17 - 4: Favourites: Haagen-Dazs, Vanilla, Edam, Plastic in Seafood

A selection of the team's favourite investigations. Kate Quilton visits Haagen-Dazs to find out why some vanilla ice-creams are more expensive than others, while Helen Lawal heads to Tanzania to see the lengths vanilla farmers go to in the production of the natural flavouring. Matt Tebbutt travels to the Netherlands to explore the myth that Edam was once used as emergency cannon balls and Jimmy Doherty learns about an innovative solution to the problem of shellfish feeding on discarded plastic in the sea.