Jimmy's Food Factory is back to unravel the secrets of supermarket food. Farmer Jimmy Doherty sets up his own food factory in a barn. Using farmyard and household junk, he is creating his own supermarket production line to find out what they are really doing to our food.

Jimmy lifts the lids on the secrets in your lunch box. To find out the difference between freshly squeezed apple juice and juice made from concentrate, he adapts a lawn mower and a mangle with some inspiration and perspiration.

What do they do to extra light mayo to cut the calories? Jimmy fakes the fat with the help of some rotting cabbages and slime. And he visits a monster greenhouse to find out why cucumbers in the supermarket are perfectly straight

Ever wondered how your biscuit get the perfect crunch? Jimmy visits the biggest custard cream factory in the country to investigate. Show less