New. Vacuums: Gregg Wallace visits a huge vacuum cleaner factory in the heart of Somerset and follows the production of their biggest seller - the Henry vacuum cleaner in bright red.
New. Ice Cream: Gregg Wallace visits a factory that churns out 50,000 litres of dairy ice cream a day, and Cherry Healey enlists an ice hockey team to test methods for stopping brain freeze.
New. Mugs: Gregg Wallace visits the Denby factory in Derbyshire - which has been making pottery since 1809 - to follow production of the Halo Heritage mug, one of the factory's best-sellers.
New. Tortilla Chips: Gregg Wallace visits the biggest tortilla factory in Europe, Cherry Healey takes on the hottest chilli in the world, and Ruth Goodman explores Elizabethan ruff collars.
Yoghurt: Gregg Wallace visits a factory in rural Somerset that produces one million pots of yoghurt every 24 hours. Cherry Healey helps out with the UK's biggest blackcurrant harvest. [S]
Cereal Bars: Gregg Wallace visits a factory in Essex that produces 400,000 cereal bars a day, and Cherry Healey travels to South Africa to help with the macadamia harvest. [S]
Liqueurs: Gregg Wallace visits a liqueur factory in Ireland producing 540,000 bottles a day, and Cherry Healey discovers where the bottles are recycled. [S]
Soup: Gregg Wallace visits a soup factory in Wigan that produces 2.5 million cans a day, while Cherry Healey compares the vitamin content of fresh and frozen vegetables. [S]
Pots and Pans: Gregg Wallace visits a foundry in France that produces iron pots and pans, while Cherry Healey is in South Africa, at one of the world's largest iron ore mines. [S]
Cornish Pasties: Gregg Wallace visits a bakery that produces 180,000 Cornish pasties a day. Cherry Healey investigates the science of onions. Ruth Goodman debunks myths about pasties. [S]
Mattresses: Gregg Wallace visits a mattress factory in Leeds, while Cherry Healey talks to a scientist about the benefits to reaction time from taking an afternoon nap. [S]
Croissants: Gregg Wallace visits a croissant factory in France. Cherry Healey talks to a professor who specialises in exploring human senses about the perfect way to eat the pastries. [S]
Wax Jackets: Gregg Wallace visits a factory in South Shields that manufactures 650 waxed jackets a day, while Cherry Healey investigates the science behind waterproof clothing. [S]
Cherry Bakewell: Gregg Wallace visits a cherry bakewell factory in Stoke-on-Trent, and Cherry Healey learns the tricks to avoiding a soggy pastry bottom when baking at home. [S]
New. Soft Drinks: Documentary series. Gregg Wallace explores Ribena's Gloucestershire factory, and Cherry Healey is in a laboratory to figure out why fizzy drinks are so appealing.
New. Sauces: Documentary series. Gregg Wallace is in the Netherlands at one of the world's biggest sauce factories, and Ruth Goodman investigates the origin of Worcestershire sauce.
New. Fish Fingers: Documentary series. Gregg Wallace explores a Grimsby factory that processes 165 tonnes of fish a week and produces 80,000 cod fish fingers every day.
Tea Bags: Gregg Wallace receives some tea leaves from Kenya and follows them through the factory that produces one quarter of all the tea drunk in Britain. [S]
Sweets: Documentary series. Gregg Wallace helps to unload a tanker full of sugar from Norfolk and follows it through one of the oldest sweet factories in Britain. [S]
Bicycles: Documentary series. Gregg Wallace visits Britain's largest bicycle factory - which produces 150 folding bikes every day - and joins a production line to make his own bike. [S]
Baked Beans: Documentary series. Gregg Wallace helps to unload 27 tonnes of dried haricot beans and follows them on a journey through the world's largest baked bean factory. [S]
Cereal: Documentary series. Gregg Wallace receives a load of corn fresh off the boat from Argentina and follows its journey through the largest breakfast cereal factory in Europe. [S]
Milk: Documentary series. Gregg Wallace, Cherry Healey and Ruth Goodman look at Britain's history with milk and visit one of the largest fresh milk processing plants on earth. [S]
Chocolate: Gregg Wallace, Cherry Healey and Ruth Goodman look at Britain's love of chocolate and visit one of the world's largest chocolate factories in York. [S]