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
History of cheese tastes of the social elite. Shards of pottery pierced with holes found in pile-dwellings are hypothesized to be cheese-strainers. They are of the Urnfield culture on Lake Neuchatel and date back to 6,000 BCE. The earliest direct evidence of cheese-making dates back to 5,500 BCE in Kujawy, Poland. For preservation purposes, cheese-making may have begun by the pressing and salting of curdled milk. Curdling milk in an animal's stomach made solid and better-textured curds, leading to the addition of rennet. Dairying existed around 4,000 BC in the grasslands of the Sahara. Hard salted cheese is likely to have accompanied dairying