Considered to be among the world's top quality cheeses, Parmigiano Reggiano is made with raw, semi-skimmed milk from cows grazing on fresh grass and hay. It has a hard, gritty texture and its flavors range from nutty to robust and slightly piquant, depending on how long the cheese had matured.
Today, the cheese goes by the unofficial Parmigiano, which is because Parma started promoting this cheese as coming from Parma when it became the capital of the Duchy of Parma and Piacenza in the 16th century. Today, it is produced in the provinces of Parma, Reggio Emilia, Modena and Bologna in Emilia-Romagna, as well as in the Lombardian province of Mantua.
Parmigiano is available in following varieties: Mezzano (2nd selection, aged for 12-15 months), Parmigiano Reggiano (aged for 12-24 months or longer) and Parmigiano Reggiano Extra, which needs to pass an additional quality assessment test after 18 months of aging.