
Gregg Wallace is in France at an enormous croissant factory where they produce 336,000 of the flaky pastries every day. He follows the production of croissants from the arrival of 21 tonnes of butter right through to dispatch. Along the way he learns how they use an 83-year-old strain of yeast to pack a flavourful punch and discovers the secret of pastry lamination. They layer very thin slices of butter between sheets of dough to create the famous flaky pastry. \n \nMeanwhile, Cherry Healey is testing the best way to eat a croissant. With the help of a professor who specialises in the science of our senses, she discovers that there is an optimum way to consume them. Ideally, they will be served warm so that the butter inside oozes fat into the pastry, smothered in jam to give a sugar and fat hit, and eaten from a paper bag so that the crinkly sound accentuates the flaky texture of the pastry. She also heads to north Wales, visiting a farm and dairy where they produce a special type of ‘concentrated’ butter. The butter is a whopping 99.8% fat, perfect for producing croissants with a long shelf life. \n \nHistorian Ruth Goodman is in Paris investigating the croissant’s surprising Austrian origins. It is thought that it originated with a pastry called a kipferl, which Austrian bakers invented in the 17th century to commemorate a heroic victory over the armies of the Ottoman Empire. Its shape was a mocking reference to the crescent on their enemy’s flag. But it took a while to transform into the modern pastry - the earliest written recipe she manages to find for a modern French croissant comes as late as 1906. Ruth also discovers that bread played a vital role in the French Revolution.
Source: BBC 2
Series 9: 4. Flapjacks
In this episode, Paddy McGuinness explores the secrets of the Graze factory in west London, revealing how they make 40 million flapjacks a year. \n\nArmed with a trusty tasting ...
09-09-2026
BBC 2
Series 9: 3. Cheese Curls
In this episode, Paddy McGuinness explores the secrets of the Walkers factory in Lincoln, to reveal how it makes 500 million packs of Quavers every year. \n\nPaddy begins by mee ...
02-09-2026
BBC 2
Series 9: 2. Sliced Bread
In a nostalgic episode of Inside the Factory, new presenter Paddy McGuinness visits the Warburtons bread factory in his hometown of Bolton, where he once worked as a youngster m ...
26-08-2026
BBC 2
Series 10: Lawnmowers
Paddy McGuinness explores the secrets of Hayter lawnmowers at their factory in Hertfordshire, learning how they produce 15,000 mowers a year. They have been making the machines ...
11-02-2026
BBC 2
Series 10: Breakfast Cereal
Paddy McGuinness explores the Kellogg’s factory in Wrexham to reveal how it makes 120 million boxes of breakfast cereal a year, inside a huge factory covering an area bigg ...
03-02-2026
BBC 2
Series 10: Throat Lozenges
Paddy McGuinness explores the secrets of the Reckitt medicine factory in Nottingham to reveal how it makes 230 million tablets and lozenges every single week. Paddy is following ...
27-01-2026
BBC 2
Series 10: Oven Chips
Paddy McGuinness explores the secrets of the McCain factory near Scarborough to reveal how it cuts, fries and freezes 80 million chips a day. Today, he’s following product ...
21-01-2026
BBC 2
Series 10: Jammy Biscuits
Paddy McGuinness explores the secrets of the Jammie Dodgers factory in south Wales, revealing how they produce a whopping 4.4 billion biscuits a year. \n\nIn this episode, Paddy ...
14-01-2026
BBC 2
Series 10: Gingerbread
Paddy McGuinness explores the secrets of the Original Biscuit Bakers factory in Shropshire to reveal how it makes 100,000 festive gingerbread figures every week in the run-up to ...
01-01-2026
BBC 2
Series 9: 1. Chocolate Seashells
Paddy McGuinness is fully immersing himself in the festive spirit as he explores a huge chocolate factory in Belgium. With lots of taste tests to enjoy along the way, he embrace ...
13-12-2025
BBC 2
Series 10: Oven Chips
Paddy McGuinness explores the secrets of the McCain factory near Scarborough to reveal how it cuts, fries and freezes 80 million chips a day. Today, he’s following product ...
21-01-2026
BBC 2
Series 10: Gingerbread
Paddy McGuinness explores the secrets of the Original Biscuit Bakers factory in Shropshire to reveal how it makes 100,000 festive gingerbread figures every week in the run-up to ...
01-01-2026
BBC 2
Series 10: Breakfast Cereal
Paddy McGuinness explores the Kellogg’s factory in Wrexham to reveal how it makes 120 million boxes of breakfast cereal a year, inside a huge factory covering an area bigg ...
03-02-2026
BBC 2
Series 9: 3. Cheese Curls
In this episode, Paddy McGuinness explores the secrets of the Walkers factory in Lincoln, to reveal how it makes 500 million packs of Quavers every year. \n\nPaddy begins by mee ...
02-09-2026
BBC 2
Series 9: 4. Flapjacks
In this episode, Paddy McGuinness explores the secrets of the Graze factory in west London, revealing how they make 40 million flapjacks a year. \n\nArmed with a trusty tasting ...
09-09-2026
BBC 2
Series 10: Jammy Biscuits
Paddy McGuinness explores the secrets of the Jammie Dodgers factory in south Wales, revealing how they produce a whopping 4.4 billion biscuits a year. \n\nIn this episode, Paddy ...
14-01-2026
BBC 2
Series 10: Throat Lozenges
Paddy McGuinness explores the secrets of the Reckitt medicine factory in Nottingham to reveal how it makes 230 million tablets and lozenges every single week. Paddy is following ...
27-01-2026
BBC 2
Series 6: 10. Vacuums
Gregg Wallace visits a huge vacuum cleaner factory in the heart of Somerset. This 32-acre site is a hive of activity where 1.2 million vacuums are made every year. Gregg is foll ...
17-08-2023
BBC 2
Series 5: 6. Pizza
Gregg Wallace is in Italy, at an enormous pizza factory where they produce 400,000 frozen pizzas each day. He mixes up a 450 kilo batch of dough for the bases; enough for 180 00 ...
02-04-2019
BBC 2
Series 9: 6. Sausage Rolls
Paddy McGuinness explores the secrets of the McColgan’s bakery in Strabane, Northern Ireland, to reveal how it makes more than half a million sausage rolls a day. \n\nAft ...
09-02-2025
BBC 2