The mutating fungus that’s good news for cheese lovers Camembert cheese was invented in 1791 when a priest from Brie (yes, like the cheese) took shelter with a dairymaid, Marie Harel, as he fled France’s anticlerical government. He taught her to make cheese with an edible rind, as local lore tells it. But the lesser-known character in Harel’s story is a mysterious mould that