Cheese ripening the cheese by fungi to occur. Mould-ripened cheeses ripen faster than hard cheeses, in weeks as opposed to the typical months or even years. This is because the fungi used are more biochemically active than the starter bacteria. Where the ripening occurs is largely dependent on the type of cheese: some cheeses are surface-ripened by moulds, such as Camembert and Brie; and some are ripened internally, such as Stilton. Surface ripening of some cheeses, such as Saint-Nectaire cheese, may also be influenced by yeasts which contribute flavour and coat texture. Others are allowed by the cheesemaker to develop bacterial surface
Processed cheese Arnold Nawrocki was assigned to Clearfield Cheese Co. in 1956. The best known processed cheese in the United States is marketed as American cheese by Kraft Foods, Borden, and other companies. It is orange, yellow, or off-white; mild, with a medium consistency; and melts easily. It is typically made from a blend of cheeses, most often Colby and cheddar. Another type of processed cheese created in the United States is Provel pasteurized processed pizza cheese, which uses cheddar, Swiss, and provolone cheeses as flavorants. Provel cheese is commonly used in St. Louis-style pizza. A third variety of processed pizza cheeses