Inside Greggs: 24/7

Food lover Grace Dent explores the phenomenon of Greggs, and its place in popular culture, visiting a pizza centre, the shop's original location and meeting the company's CEO.

Grace is given exclusive access to Greggs' secret innovation centre at their HQ in Newcastle, getting a sneak preview of their new product ranges and let loose on some muffin making which has the potential to go horribly wrong…