Gregg Wallace looks into how one of Britain's largest bakeries makes up to one and a half million loaves of bread each week. They also look into the biggest flour mills in the country and take a look at the history of white bread.
Gregg Wallace is inside one of the largest Chocolate factories in York, it makes over 7 million chocolate bars a day. He follows to process from bean to bar. They also follow up on the history of chocolate.
Gregg Wallace, Cherry Healey and Ruth Goodman look into the production of milk from the farm right through to the history. The get to know the high-tech ways milk gets from the cow to a bottle on your front step.