E1 - Tea Bags

Aired: July 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 Britain.

E2 - Pasta

Aired: July 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.

E3 - Biscuits

Aired: August 01, 2017

Gregg Wallace follows the production of chocolate digestives and discovers that we are all eating them the wrong way up.

E4 - Fish Fingers

Aired: January 02, 2018

Gregg Wallace explores the Grimsby factory that processes 165 tonnes of fish a week and produces 80,000 cod fish fingers every day.

E5 - Sauces

Aired: January 09, 2018

Ruth Goodman investigates the origin of Worcestershire sauce, as told by Mr Lea and Mr Perrins.

E6 - Soft Drinks

Aired: January 16, 2018

Gregg Wallace explores Ribena's Gloucestershire factory. Meanwhile, Cherry Healey is in the lab figuring out why fizzy drinks are so appealing.