Inside the Factory (2015–present)

1. S01E01BreadMay 5, 2015—Gregg Wallace, Cherry Healey and Ruth Goodman look at the production, science and history of bread in Britain.
2. S01E02ChocolateMay 6, 2015—Gregg Wallace, Cherry Healey and Ruth Goodman look at Britain's love of chocolate and visit one of the world's largest chocolate factories i
3. S01E03MilkMay 7, 2015—Gregg Wallace, Cherry Healey and Ruth Goodman look at Britain's history with milk and visit one of the largest fresh milk processing plants

Season 1 ranked & reviewed

1. S02E01CerealJuly 26, 2016—Gregg Wallace receives a load of corn fresh off the boat from Argentina and follows its journey through the largest breakfast cereal factory
2. S02E02CrispsAugust 2, 2016—Gregg Wallace follows 27 tonnes of potatoes from a farm in Hampshire through the largest crisp factory on earth.
3. S02E03Baked BeansAugust 9, 2016—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.
4. S02E04BicyclesAugust 16, 2016—Gregg Wallace visits Britain's largest bicycle factory, which produces 150 folding bikes every day, and joins a production line to make his
5. S02E05SweetsAugust 23, 2016—Gregg Wallace helps to unload a tanker full of sugar from Norfolk and follows it through one of the oldest sweet factories in Britain.
6. S02E06ShoesAugust 30, 2016—Gregg Wallace visits the UK's largest sports shoe factory to see how they produce 3,500 pairs of trainers every day.

Season 2 ranked & reviewed

1. S03E01Tea BagsJuly 18, 2017—Gregg Wallace receives some tea leaves from Kenya and follows them through the factory that produces one quarter of all the tea drunk in Bri
2. S03E02PastaJuly 25, 2017—Gregg Wallace is at the world's largest dried pasta factory in Italy, where they produce 150,000 kilometres of spaghetti each day.
3. S03E03BiscuitsAugust 1, 2017—Gregg Wallace follows the production of chocolate digestives and discovers that we are all eating them the wrong way up.
4. S03E04Fish FingersJanuary 2, 2018—Gregg Wallace explores the Grimsby factory that processes 165 tonnes of fish a week and produces 80,000 cod fish fingers every day.
5. S03E05SaucesJanuary 9, 2018—Ruth Goodman investigates the origin of Worcestershire sauce, as told by Mr Lea and Mr Perrins.
6. S03E06Soft DrinksJanuary 16, 2018—Gregg Wallace explores Ribena's Gloucestershire factory. Meanwhile, Cherry Healey is in the lab figuring out why fizzy drinks are so appeali

Season 3 ranked & reviewed

1. S04E01CoffeeJuly 17, 2018—How a factory in Derbyshire produces 175,000 jars of instant coffee every day, from green coffee beans to the freeze-dried final product. Ho
2. S04E02Toilet RollJuly 24, 2018—How a factory in Manchester produces 700,000 toilet rolls a day starting with spruce timber offcuts from Sweden, pulped and rolled onto 1.2-
3. S04E03SausagesJuly 31, 2018—How a factory in North Yorkshire produces 625,000 sausages a day, using machines that can fill 600 sausages in a minute. How low and slow sh
4. S04E04CurryAugust 14, 2018—How a factory in Nottinghamshire produces 250,000 jars of curry sauce each day. How chillies are harvested on small farms in India, dried, p
5. S04E05Potato WafflesFebruary 26, 2019—How a factory in Lowestoft produces 450 tonnes of frozen food each day. The differences between waxy and floury potatoes, and which you shou
6. S04E06PizzaMarch 5, 2019—How a factory in Italy produces 400,000 frozen pizzas each day. The science that makes mozzarella work so well on pizza. How pork is transfo
7. S04E07BeerMarch 12, 2019—How Britain's biggest brewery produces 3 million pints of beer a day in Burton upon Trent. How four basic ingredients – water, malted barley
8. S04E08PencilsMarch 19, 2019—Gregg Wallace is in Germany at a historic pencil factory where they produce 600,000 writing implements a day. Cherry Healey examines the ast
9. S04E09CheeseMarch 26, 2019—How a cheese factory in Gateshead produces 3,000 tonnes of spreadable cheese every year - making cheddar, chopping and blending it with whey

Season 4 ranked & reviewed

1. S05E01Cherry BakewellsJuly 30, 2019—How a factory in Stoke-on-Trent produces 250,000 little cherry bakewell tarts every day - from what makes a shortcrust pastry 'short' to the
2. S05E02Wax JacketsAugust 6, 2019—How a factory in South Shields produces 650 water-resistant waxed jackets a day - from 500-metre-long rolls of undyed cotton, to dipping the
3. S05E03CroissantsAugust 13, 2019—How a factory in France produces 336,000 croissants every day - from the 21 tonnes of butter, to the 83-year-old strain of yeast that packs
4. S05E04MattressesAugust 20, 2019—How a factory in Leeds produces 600 bouncy beds every day - from making steel into springs, to their placement in individual pockets and cov
5. S05E05PastiesApril 7, 2020—How a bakery in Cornwall produces 180,000 Cornish pasties a day. There are rules: A Cornish pasty must be made in Cornwall; the filling can
6. S05E06Pots and PansApril 14, 2020—How a foundry in France produces a cast iron pot every five seconds - from the arrival of 20 tonnes of crude iron right through to brightly
7. S05E07SoupApril 21, 2020—How a factory in Wigan produces two million tins of soup a day. Vegetable soup is followed from a pea harvest in Yorkshire right through to
8. S05E08LiqueursApril 28, 2020—How a factory in Ireland produces 540,000 bottles of liqueurs a day. From grain, to barrel aging, to mixing cream and whiskey together, the
9. S05E09Cereal BarsMay 5, 2020—How a factory in Essex produces 400,000 cereal bars a day - from nuts to cranberries and sultanas to puffed rice, with a carefully balanced

Season 5 ranked & reviewed

1. S06E01CiderDecember 27, 2020—How the world's biggest cider producer makes more than 350 million litres each year - from orchards in Herefordshire, to the mill in Ledbury
2. S06E02SocksJanuary 5, 2021—How a Leicester factory makes one and a half million socks annually. What causes smelly feet, and which socks tackle it best. How a cotton s
3. S06E03YoghurtJanuary 12, 2021—How one million pots of yoghurt are produced every 24 hours in rural Somerset - from the Friesian cows that provide the milk to the processi

Season 6 ranked & reviewed

1. S07E01Christmas CardsDecember 22, 2021—How Woodmansterne produces 35 million greeting cards a year in Watford - from sketching a card design, to creating an aluminium plate for pr
2. S07E02DiggersDecember 29, 2021—How JCB make as many as a hundred iconic yellow diggers every single day in Rocester, Staffordshire, requiring just 45 hours to make a digge
3. S07E03Malt LoafJanuary 5, 2022—How the largest malt loaf factory in the world makes the sweet and squidgy cake-cum-bread, a popular teatime treat consumed at the rate of 1
4. S07E04ChairsJanuary 12, 2022—Gregg Wallace visits the Ercol factory in Buckinghamshire to follow the production of a Windsor chair. Cherry Healey investigates how sittin
5. S07E05Leather BootsJanuary 19, 2022—Gregg Wallace visits a bootmaking factory in Wollaston, Northamptonshire to follow the production of a pair of Dr. Martens, while Cherry Hea
6. S07E06Tortilla ChipsJanuary 26, 2022—How the biggest tortilla factory in Europe makes 60,000 tonnes of snacks every year in Coventry, including their UK bestseller: chilli heatw
7. S07E07MugsFebruary 2, 2022—How Denby - potterymaker since 1809 - produces one of their best sellers, the Halo Heritage mug, in Derbyshire. The journey starts at the fa
8. S07E08Ice CreamFebruary 9, 2022—How a family-run factory in rural Aberdeenshire churns out fifty thousand litres of dairy ice cream every day. How best to stop 'brain freez
9. S07E09VacuumsFebruary 16, 2022—How a 32-acre site in Somerset makes 1.2 million Henry vacuum cleaners every year.
10. S07E10TrainsAugust 1, 2022—How Alstom builds a 187-tonne, five-carriage electric train on their 84-acre site in Derby. How the train's aluminium is made at the UK's la
11. S07E11BusesAugust 8, 2022—How London's famous red double-decker bus - including a fully electric model - is built in Scarborough, Yorkshire, highlighting the tough la
12. S07E12Jaffa CakesApril 4, 2023—How a factory in Manchester churns out 6 million Jaffa Cakes every single day - 1.4 billion per year. The legal significance of whether Jaff
13. S07E13Pork PiesApril 11, 2023—How Vale of Mowbray make pork pies - including 425,000 a week of their 75g snack-sized traditional pie - in Northallerton, Yorkshire. Hacks
14. S07E14CrumpetsApril 18, 2023—How a factory makes 432 million classic British crumpets every year from a precise combination of ingredients, using some clever chemistry t
15. S07E15Vegan SausagesApril 25, 2023—The futuristic process by which Heck churn out up to 90,000 vegan sausages a day in Yorkshire. How Canadian soy beans are transformed into p
16. S07E16Rice PuddingMay 2, 2023—Gregg Wallace explores the Ambrosia factory in Lifton, Devon, to reveal how it makes up to 360,000 rice puddings every single day. How fresh
17. S07E17MintsMay 9, 2023—How Polos produce 32 million mints every day in York - part of the 19,000 tonnes of mints consumed every year in the UK. The largest sugar b

Season 7 ranked & reviewed

1. S08E01Yorkshire PuddingsDecember 27, 2023—How Aunt Bessie's produce a staggering 500 million Yorkshire puddings every year in Hull. How wheat is tested before it can be milled into f
2. S08E02Jelly BeansJanuary 3, 2024—How Jelly Bean Factory make ten million of their colourful little sweets every day in Dublin. The important role glucose plays in our bodies
3. S08E03JeansJanuary 9, 2024—How denim cloth is made, and how Welsh jeans brand Hiut transform it into one of the world's most popular items of clothing - jeans. How zip
4. S08E04Stuffed PastaJanuary 16, 2024—How Dell Ugo make 500 million stuffed pasta parcels every year in Hertfordshire. How Cromer on the Norfolk coast still use traditional fishi
5. S08E05StoutJanuary 23, 2024—How Guinness make two million litres of Irish stout every single day. How reservoir water is treated to provide clean drinking water to the
6. S08E06Bath BombsJanuary 28, 2024—How Lush produce an astonishing 14 million bath bombs every year in Dorset. How taking a hot bath can provide some of the benefits of exerci
7. S08E07CarpetsFebruary 4, 2024—How Axminster produces 46,000 square metres of carpet every year in Devon. The science behind the best ways to remove stubborn stains from c
8. S08E08Chocolate BarsFebruary 11, 2024—How Nestle make more than eight million bars of chocolate every day in York - the UK's city of chocolate. How a cocoa plant quarantine facil
9. S08E09SofasFebruary 18, 2024—How HSL make more than 5,000 sofas every year in West Yorkshire. The science of light bulbs, to create the perfect environment to snuggle up
10. S08E10Paint and WallpaperFebruary 25, 2024—How Farrow & Ball produce up to 200,000 litres of paint and 10,000 metres of wallpaper a week in Dorset. How a key ingredient in paint-makin

Season 8 ranked & reviewed

1. S09E01Chocolate SeashellsDecember 22, 2024—In this Christmas special, new presenter Paddy McGuinness and Cherry Healey visit a chocolate factory in Belgium that produces four million
2. S09E02Sliced BreadJanuary 7, 2025—Paddy McGuinness makes a wonderfully nostalgic trip to the Warburtons factory in his hometown of Bolton where, thirty years ago, he had a Sa
3. S09E03Cheese CurlsJanuary 14, 2025—New presenter Paddy McGuinness visits a factory in Lincoln to explore how they make 500 million packs of Quavers every year. Cherry Healey l
4. S09E04FlapjacksJanuary 21, 2025—Paddy McGuinness visits a factory that makes forty million flapjacks a year. Meanwhile, Cherry Healey learns how oats can benefit gut health
5. S09E05Hardback BooksJanuary 28, 2025—Paddy McGuinness visits a factory that produces three million books every week. Cherry Healey is learning how an intricate design is printed
6. S09E06Sausage RollsFebruary 4, 2025—Paddy McGuinness visits a factory in Northern Ireland to learn how they make more than half a million sausage rolls every day. Cherry Healey

Season 9 ranked & reviewed

1. S10E01GingerbreadDecember 23, 2025—Paddy McGuinness and Cherry Healey are in the festive spirit as they join factory workers in Market Drayton producing gingerbread Santa and
2. S10E02Jammy BiscuitsJanuary 6, 2026—Paddy McGuinness and Cherry Healey visit a factory in south Wales that produces a whopping 4.4 billion biscuits a year.
3. S10E03Oven ChipsJanuary 13, 2026—Paddy McGuinness and Cherry Healey visit a factory near Scarborough that produces an incredible 80 million chips every single day.
4. S10E04Throat LozengesJanuary 20, 2026—Paddy McGuinness visits a medicine factory in Nottingham that’s helping to tackle the nation’s colds and flu, producing 230 million tablets
5. S10E05Breakfast CerealJanuary 27, 2026—Paddy McGuinness visits a huge factory in north Wales that churns out an incredible 120 million boxes of breakfast cereal a year.
6. S10E06LawnmowersFebruary 3, 2026—Paddy McGuinness and Cherry Healey enjoy a summertime visit to a factory in Hertfordshire that produces 15,000 lawnmowers every year.

Season 10 ranked & reviewed