Gregg visits the Woodmansterne card factory in in Watford. It’s one of the largest greeting card companies in the UK, a family business sending out 35 million cards a year.

Gregg Wallace and Cherry Healey get special access to a factory that makes as many as a hundred iconic yellow diggers every single day.

Gregg Wallace visits the largest malt loaf factory in the world, encountering a production line of massive dough mixing, mind-boggling tin filling and intensely hot baking.

Gregg Wallace visits the Ercol factory in Buckinghamshire to follow the production of a Windsor chair. Meanwhile, Cherry Healey investigates how sitting too much could be very bad for our health.

Gregg Wallace visits a bootmaking factory in Wollaston, Northamptonshire to follow the production of a pair of Dr. Martens, while Cherry Healey gets to grips with the machines that make shoelaces.

Gregg Wallace visits the biggest tortilla factory in Europe, while Cherry Healey takes on the hottest chilli in the world and Ruth Goodman reveals how the Elizabethans treated their ruff collars.

Gregg visits the Denby factory in Derbyshire. Brits drink 195 million mugs of tea and coffee every day, so Gregg is following production of one of the factory’s best sellers, the Halo Heritage mug.

Gregg visits a factory that churns out fifty thousand litres of dairy ice cream every day, while Cherry Healey enlists an ice hockey team to test the best methods of stopping brain freeze.

Gregg Wallace visits a huge vacuum cleaner factory in the heart of Somerset and follows their biggest seller, the Henry vacuum cleaner in bright red.

When he was a child, Gregg loved playing with toy trainsets. Now he's got special access to learn how the ultimate model is made: a huge 187 tonne, five carriage electric train. Historian Ruth Goodman is energised by the history of electric trains.

Gregg Wallace gets exclusive access to a factory that builds red London buses, while Cherry Healey visits a bus windscreen factory and Ruth Goodman learns about London’s earliest double-deckers.

Gregg Wallace visits a factory that churns out 1.4 billion Jaffa Cakes a year, while Cherry Healey is in the city responsible for growing the fruit that gives these cakes their name.

Gregg Wallace explores the Vale of Mowbray pork pie factory, which began making pork pies in 1928. Cherry Healey reveals hacks for the perfect vegan shortcrust pastry.

Gregg Wallace visits a factory making 432 million crumpets every year. Cherry Healey learns the science of making batter for pancakes, and Ruth Goodman reveals how crumpets got their bubbles.

Gregg visits a factory that churns out up to 90,000 vegan sausages a day, while Ruth Goodman uncovers the green shoots of the vegetarian movement in Britain.

Gregg Wallace explores the Ambrosia factory in Lifton, Devon, to reveal how it makes up to 360,000 rice puddings every single day.