Currently only five dairies, in Nottinghamshire, Leicestershire and Derbyshire, are licensed to produce Blue Stilton.

BBC: Source of Stilton cheese's unique smell revealed

Colston Bassett has one of only five dairies, located in Derbyshire, Nottinghamshire and Leicestershire, licensed to produce Blue Stilton.

BBC: Colston Bassett celebrates 100 years of Stilton cheese

In 1996, the Stilton Cheese Makers' Association achieved Protected Designation of Origin (PDO) status for blue Stilton from the European Commission.

BBC: Men's Cheese Rolling race, Stilton, 2007

The dairy produces a blue cheese made from raw milk which, although similar to the famous cheese, cannot be called Stilton.

BBC: Source of Stilton cheese's unique smell revealed

The Cambridgeshire village of Stilton hopes to win public support for its battle to be recognised as the original home of the famous blue-veined cheese.

BBC: Men's Cheese Rolling race, Stilton, 2007