Because Italy is a romantic country, this kind of fireworks is out of tune with its image. Italy is the most prosperous place in music and culture. Snacks are absolutely not allowed on the streets of Milan, Italy. Because snacks have a lot of oil stains and packaging. Oil fume has brought great pollution to the environment.

and street snacks are not hygienic. The source of snack raw materials is unknown. Vendors may buy cheap waste meat, add various additives, process it into snacks, and shoddy it. People who eat these dead poultry meat and meatballs synthesized by additives will be "chronic poison" even if they don't have the same day. The oil in soup is reused. Unsaturated fatty acids will polymerize in cooking oil under repeated or long-term high temperature conditions, forming indigestible or toxic polymers, such as dimer, trimer or polymer, which are harmful to human health. Repeated high temperature will also produce a large number of substances such as free radicals, trans fatty acids and tri-tetraphenylpyridine, which are carcinogenic to some extent.

poor sanitary conditions. Street snacks, as the name implies, are placed on the side of the road. Cars come and go, and the chances of food pollution by various dusts and bacteria are greatly increased. Hygiene and safety of utensils for holding food are not guaranteed. Most of these appliances are simply cleaned with a bucket of water brought with the car. These appliances are not only disinfected, but even detergent will not be used. These public tableware will spread diseases, and some infectious diseases will be transmitted to healthy people in this way.

bagging tableware is also unsafe. Most of the plastic bags used by some merchants to set bowls or plates belong to PVC plastic bags, which contain a lot of stabilizers and plasticizers. When this chemical substance is heated or comes into contact with oily food, it will quickly seep out and migrate into food, and it will cause cancer if it is absorbed by the human body. Although compared with ordinary plastic bags, food-grade plastic bags are thicker in texture, resistant to high temperature and corrosion, but they can't hold foods with too high temperature, and can only be used to hold cold solid foods such as steamed bread and cakes below 5 degrees Celsius. When the temperature of food exceeds 5 degrees Celsius, toxic components in plastic bags will seep out, thus polluting food and causing harm to human body.