First of all, from the external environment, many canteens are a roadside facade room, and the humble one is a tin room. As long as there is a big car passing by, the raised dust will be scattered on the food. There are also many mosquitoes in summer, so they can't escape the invasion of insects. There are also various mosquito and fly infectious diseases, which are not scary. Eating these unclean things for a long time will definitely make your body different.
The source of the ingredients. Just like a well-run cafeteria, there are many customers and huge ingredients are needed every day, so it is inevitable to choose some unreliable or poor-quality dishes sold by small businesses to save costs. The food bought from them is not safe, it may be bad or there are many pesticide residues. It's definitely not safe to buy such dishes for customers.
Selection of ingredients. Even if the ingredients are good, the ingredients are not necessarily good. I have seen some soy sauce used in cafeteria pickled at home, but the environment and tools in the pickling process are very unsanitary. There is also the choice of engine oil. Families will use cooking oil once and some restaurants will recycle it. Obviously, the health situation is worrying.
Then there is the kitchen environment. Because the whole country is building civilized cities, the environment is relatively better. It turns out that the kitchen of this canteen is dark and greasy everywhere, which makes people lose their appetite at first sight, not to mention the hygiene of the service staff, not to mention a lot of hair, and even plastic bags can be found, which makes them feel dirty when they think about it.
Then there is the dining environment. Like a better restaurant, tables and chairs will be scrubbed, and dishes and chopsticks will be bought at one time. Although I don't know if it is clean or not, it is still very comfortable to use. The canteen is not like this. Wash the bowls and chopsticks full of oil with clear water, and wipe the greasy table with a rag. Sometimes the arm that eats will feel sticky. And people who eat, people who are in a hurry, have all kinds of behaviors. If there is no air conditioning in summer,
Of course, there are many good cafeterias, so we can't generalize. It's just that it's difficult for most fast food restaurants to maintain good hygiene because they make money desperately.