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
Milk and meat in Jewish law mammals produce milk. According to Shabbethai Bass, Rashi was expressing the opinion that the reference to a "mother" was only present to ensure that birds were clearly excluded from the prohibition; Bass argued that Rashi regarded the ban on boiling meat "in its mother's milk" to really be a more general ban on boiling meat in milk, regardless of the relationship between the source of the meat and that of the milk. Substances derived from milk, such as cheese and whey, have traditionally been considered to fall under the prohibition, but milk substitutes, created from non-dairy sources, do not. However,