Jimmy Doherty asks what offers better value: growing your own fruit and veg or buying from the supermarket? Plus, investigating the illegal trafficking of eels, and ginger beer.

The team investigate how supermarkets get the iced writing so perfect on birthday cakes, the popularity of the soy bean, and the growing trend for hemp-based food products.

Some favourite investigations as Jimmy Doherty looks at how our national dish could become squid and chips, Kate Quilton reports on kangaroo meat, and Matt Tebbutt looks at pesto.

Kate and Helen explore vanilla, while in the Netherlands Matt explores the myth that Edam balls were once used as emergency cannon balls!

Favourite investigations. Kate Quilton visits McVitie's to ask why many biscuits have little holes all over them. Jimmy Doherty finds out how corks are made for wine bottles.

Favourite investigations. Jimmy Doherty visits Europe's biggest brewery. Kate Quilton challenges Matt Tebbutt to make crumpets. And Matt discovers why maple syrup is so expensive.