Most cheeses, with a few specific exceptions, are made with whole milk. This can mean pasteurized milk from the grocery store, or raw milk fresh off the farm. The only milk that should not be used for cheesemaking is ULTRAPASTEURIZED milk. This milk has been heated to such a high temperature that all of the native bacteria and enzymes are completely changed and destroyed. As a result it will not form a curd and will make only a mush resembling ricotta if an attempt is made to make cheese with it.