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
Rumi cheese 3–4 months the cheese develops an open texture and a sharp, pungent flavor. Rumi is available in disks or as slices with variable weight in vacuum packing. There are 100 calories in an ounce serving, with about 28% saturated fat. The addition of low levels of PGE or lipases from "R. miehei" or "R. pusillus" has been reported to improve the flavor of "Ras" and "Domiati" cheeses. In 1985 an experimental Ras cheese was made using equal amounts of cow and buffalo milk, with the addition or 20% to 30% of soy milk. The fat content was lower than natural