Gregg Wallace and Cherry Healey return with a six-part run of the series about Britain’s biggest factories. Tonight, it’s all about cereal with Gregg in Manchester to see how Kellogg’s cornflakes are made and how the facility manages to produce more than a million boxes of cereal every single day. Cherry, meanwhile, goes beyond the factory floor to investigate the negative effects of skipping the first meal of the day and find out why nutrients are added to breakfast cereals. Also on board is historian Ruth Goodman, who looks at what sort of foods we were eating before cereal became a breakfast staple.