Why is it that stilton can only be made in three counties? This is just one of those questions you've never thought to ask about that most British of blue cheeses.
But Julia Harbutt, the author of Cheese: A complete guide to over 300 cheeses of distinction, has the answers.
Anna MacNamee joins her round the kitchen table to taste one of her favourites. British Cheese Directory, editor Juliet Harbutt, Pub: Juliet Harbutt; ISBN: 0954224000, £45 Cheese, by Juliet Harbutt, LORENZ BOOKS; ISBN: 0754811050, £7.99