It could be a way to use the excess or that milk which is about to spoil. There's a large amount of fat left over from the production of skim milk. This fat usu

It could be a way to use the excess or that milk which is about to spoil. There's a large amount of fat left over from the production of skim milk. This fat usually gets turned into cheese, that's why pizzas are more cheesy than in the past.