Inside Britain's Food Factories

Celebrating Britain's insatiable appetite for snacks by exploring how the `Wagon Wheel' factory in South Wales makes millions of biscuits a year, and learning the secrets of making an award-winning pork pie in Melton Mowbray.

Finding out how Aunt Bessie's produce millions of Yorkshire puddings a year, how Yorkshire Tea turn out tea bags by the truck-load, and how Birdseye face a race against time to get their peas from field to freezer in a celebration of Yorkshire.

Celebrating childhood favourites by making drumstick lollipops by the million at the Swizzles sweet factory, churning out proper ice cream at the Mackie's Family Farm, and making orange cordial destined for centre court at the Robinson's factory.

Making traditional Lancashire Eccles cakes using a recipe passed from father to son, making jam fit for the Queen's breakfast table at Tiptree, and producing gin infused with exotic botanicals at Bombay Sapphire's high-tech distillery.

Making Stilton cheese at a family firm that's been churning it out for three generations, learning the secrets of Lea & Perrins Worcestershire Sauce, and getting a caffeine fix by roasting coffee at Taylors of Harrogate.

Going back to basics with some products that haven't changed in centuries, making miles of sausages with Heck, world-famous sea salt in Maldon, and a single-malt whisky at Glenfarclas.