Unpasteurized cheese, also known as raw-milk cheese, is made from milk that has not been pasteurized. Pasteurization occurs during cheesemaking when milk is heated at the beginning of the cheesemaking process to destroy microorganisims that can potentially cause sickness or spoilage.
Being stored in brine, Halloumi is quite a salty cheese; if it is too salty for you, simply rinse it under running water before using it. Once opened, Halloumi can be kept in fresh water in the fridge for several days, or it can be frozen for up to 3 months.
Traditional halloumi is made from a blend of sheep and goat milk, which gives the flavor a distinctive tang. Cheese made from cow's milk is growing more common, since this type of milk is cheaper and it has a more mild flavor.