While we often use the name âparmesanâ to refer to all of Italyâs grateable hard cheeses, there are a number of different styles within the category.
PARMESAN
According to FDA laws, any cowâs milk cheese that has a hard, brittle rind and granular texture, and grates easily, can be labeled parmesan in the U.S.
Not only does a hard cheese not need to come from Italy to be classified as parmesan, it doesnât even need to be made from fresh whole milk. Instead, reconstituted dry milk, skim milk, and/or cream are also all acceptable.
PARMIGIANO-REGGIANO
Parmigiano-Reggiano is the style most of us think weâre referring to when using the name parmesan. Itâs the highest quality of all Italian hard cheeses, and the one locals refer to as âThe King of Cheesesâ â just donât tell the Roquefort-loving French.
To comply with DOP guidelines, Parmigiano-Reggiano has to be made in one of two northern Italian regions: Emilia-Romagna, which is home to Parma (hence the name), or the Mantova province of Lombardy.
GRANA PADANO
Like Parmigiano-Reggiano, Grana Padano is a golden, hard-rind cheese made using cowâs milk. The production region is much larger than that of the King of Cheeses, and, at nine months, the minimum aging requirement is more relaxed.
PECORINO ROMANO
It is texturally similar to the other three kinds of cheese, but thatâs where their similarities end. Rather than cows, itâs sheep that provide milk.
Aging ranges between five months and eight months, and Pecorino Romano production must occur either on the island of Sardinia (where the majority takes place), in the central region of Lazio, or in the Tuscan province of Grosseto.
These bold flavors come from the sheepâs milk base, which also provides a milky white cheese and a dark black rind, compared to the yellow-golden cowâs milk.