The FDA requires that any unpasteurized milk cheese be aged a minimum of 60 days, no matter where it was produced. It doesn’t! Cotija will get softer when heated, but it doesn’t fully melt ...

Cheese matters. All chefs will tell you they ... due to its high moisture content and quick melting.

A rolling boil will sap cheese of its moisture content far too quickly and prevent it from the slow melting that is needed to marry the cheese and the soup. Turn the heat down to the scantest ...