Cheese in the categorization of these cheeses is their age. Fresh cheeses without additional preservatives can spoil in a matter of days. Content (double cream, goat, ewe and water buffalo) Some cheeses are categorized by the source of the milk used to produce them or by the added fat content of the milk from which they are produced. While most of the world's commercially available cheese is made from cows' milk, many parts of the world also produce cheese from goats and sheep. Some cheeses are described by their fat content. Double cream cheeses are soft cheeses of cows' milk enriched
History of cheese from the outset. It is the only form in which milk can be kept in a hot climate. Animal skins and inflated internal organs provided storage vessels for a range of foodstuffs. Cheese produced in Europe, where climates are cooler than in the Middle East, required less salt for preservation. With less salt and acidity, the cheese became a suitable environment for useful microbes and molds, giving aged cheeses their pronounced and interesting flavors. The earliest evidence of cheese () is the Sumerian cuneiform texts of Third Dynasty of Ur, dated at the early second millennium BC. Remains identified as