According to the pizza makers, you can judge a pizzeria and its pizzas without even trying them: by the look of the pizza and the smell of the place. For example, you can tell a good cheese by the way it’s melted.
If it looks like a discrete entity, and the colors of the cheese and sauce contrast sharply rather than blending well, it is very likely a poor quality or improperly prepared cheese.
In addition, the general smell in the pizzeria should whet the appetite of the visitors. You should therefore pay attention to the aromas in the air as soon as you enter the restaurant and, if necessary, change the restaurant if the scent does not appeal to you immediately.