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 makes Sunday lunch from scratch. He tries to create the potato flakes that make instant mash. Like the factory, he uses a drum dryer to dehydrate his potatoes, but is his flame-thrower too powerful for the job?

And how do the food factories get the caffeine out of coffee? To find out, Jimmy makes his own decaf coffee using a fish tank!

Jimmy discovers how high-tech hospital kit is helping a sheep farmer choose his best rams for breeding. And he heads off to a factory that makes 30 million Yorkshire puddings every week. How do they get every one to rise perfectly? Show less