Parmesan. Hard texture suitable for grating; rich, nutty flavor. More intense and saltier than Asiago. Pecorino Romano. Hard texture suitable for grating; savory flavor. Made from sheep's milk leading to a tangier taste; saltier than Asiago. Grana Padano. Hard, crumbly texture and a savory, slightly sweet flavor. And even in the North parmigiano-reggiano isn't universally used -- north of the Po grana padano is often preferred. The pecorino romano (as opposed to all the bazillion other kinds of pecorino) production zone includes parts of Sardinia as well as Lazio. The cheese can be eaten quite young (primo sale) and is grated at about 10-12 months. The main difference is that American Parmesan is not as regulated as Parmigiano. It can be made anywhere and there aren't any nearly as many regulations about the milk or on how long it's aged. After the curds are drained and placed into molds, the cheese has to sit for a few days to firm up. From here, the Parmesan is aged in plastic for at Parmesan cheese; olive oil; pine nuts; garlic; Another type of hard cheese, such as Pecorino or Grana Padano can be used in place of the Parmesan, and walnuts are often used as a replacement for Parmigiano Reggiano must be made in the Italian cities of Parma, Reggio Emilia, Modena, Bologna and Mantua. Parmesan is made in a nameless factory by automatons - end of story. And then there's Grana Padano, Parmigiano Reggiano's sibling, which varies in flavour, as well as in regionality and production. Grana Padano—another excellent grating option—is made using only evening milk from the cows, imparting less fat into the final wheel—while Parmigiano uses both morning and evening milk stores. Several different types, including Parmigiano-Reggiano, Grana Padano, and Parmesan cheese, are made in other countries. Parmigiano-Reggiano and Grana Padano are both made in Italy and have a Protected Designation of Origin (PDO) status, which means that they can only be made in specific regions of Italy using specific methods. Parmesan cheese Hard cheeses where cheese crystals are common and valued include comté, aged cheddar, grana cheeses like Parmesan, Grana Padano, and pecorino romano, as well as old gouda. However, in some cheeses, like industrial cheddar, they are considered a production defect. [citation needed] Cheese crystals can consist of different substances. The flavor differences stem from two big differences between the two: First, says DiPalo, Grana Padano is made only with partially skimmed milk, while Parmigiano is made from a mix of whole and 1. Made In Different Regions. One of the differences between this one and Grana Padano is that it is made in the region of Emilia Romagna, Piedmont, Veneto, Trentino/Alto Adige and Lombardy while Parmigiano Reggiano is made in the region of Bologna, Parma, Mantua, or Modena. It is also aged and has a much sharper flavor than Grana Padano. RHle3Li.