When the mixture burns, polycyclic aromatic hydrocarbons form, or toxic compounds that cause tumors and hormonal imbalances. The Ministry of the Environment and IS.S.S. The pizza chef's job is to make sure that the pizza can be burned by lifting a flap and turning it towards the fire to ensure even cooking.
The Neapolitan Pizza Disciplinary also states that if you receive a burned pizza you have the right to request another cooked cooked dish, obviously for free. Keep your eyes open, therefore, and be wary of fake Neapolitan pizzerias!