Italian prosecutors believe pizza in the southern city of Naples may be baked in ovens lit with wood from coffins dug up from the local cemetery, Italian daily Il Giornale says.
"Pizza, one of the few symbols of Naples that resists ... is hit by the concrete suspicion that it could be baked with wood from coffins," Il Giornale said on Monday.
Investigators in Naples are setting their sights on the thousands of small, lower-end pizza shops and bakeries that dot the city on suspicion that patrons may "use wood from caskets to keep ovens burning".
Naples' graveyard has long been hunting ground for thieves: last year, 5,000 flower pots were stolen from the cemetery.
"A gang might have set up a market for coffins sold to hard-hearted owners of bakeries and pizzerias looking to save money on wood," Il Giornale said.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
Neapolitan pizza was invented between 1715 and 1725, with the world-famous Margherita variant first cooked up in 1889.
Tradition has it that queen Margherita of Savoy asked one of Naples' famed pizzaioli to come up with a dish for the people.
The result, which provides the basis for most pizzas enjoyed around the world, represented the colours of recently unified Italy: green basil, white mozzarella and red tomatoes.
Italy's estimated 25,000 pizzerias employ around 150,000 people and account for a turnover of E5.3 billion ($A7.4 billion).
