Pizza, also known as pizza, pizza, pizza, pizza, is a food originating in Italy and is popular all over the world. The usual practice of pizza is to cover the ketchup, cheese and other ingredients with a fermented round cake and baked in an oven. Cheese is usually made with mozzarella cheese, but also with several types of cheese, including Parmesan cheese, Roman cheese, Italian cottage cheese or Monterey Jack cheese, and mozzarella cheese. According to statistics, there are more than 20,000 pizza stores in Italy, of which 1,200 are in Naples. Most Neapolitans eat at least one pizza a week, and some eat almost every day for lunch and dinner. Whether the diners are rich or poor, they are used to folding up the pizza and eating it in their hands. This has become one of the basis for identifying the advantages and disadvantages of pizza. Pizza must be soft and moderate, even if it is folded like a "wallet", the outer layer will not break.