Buffalo mozzarella farms used to produce the PDO buffalo mozzarella DOP. On 19 April, China definitively removed the ban on mozzarella, originally activated on 28 March 2008, and tests held in December 2013 in Germany on behalf of four Italian consumer associations have highlighted dioxin and heavy metal levels at the lowest of five times at most permitted by law. To produce of cheese, a cheese maker requires of cow milk but only of buffalo milk. Producing 1 kg of butter requires of cow milk but only of buffalo milk. The steps required to produce buffalo mozzarella are: The digestive system of
Egyptian cheese from Upper and Lower Egypt. The pots are similar to those used today when preparing "mish". Cottage cheese was made in ancient Egypt by churning milk in a goatskin and then straining the residue using a reed mat. The Museum of Ancient Egyptian Agriculture displays fragments of these mats. In the 3rd century BC there are records of imported cheese from the Greek island of Chios, with a twenty-five percent import tax being charged. According to the medieval philosopher Al-Isra'ili, in his day there were three types of cheese: "a moist fresh cheese which was consumed on the same day