Keep your cheese fresh, flavorful, and ready for pasta night.

The cheese usually arrived intact, but it would occasionally mold if not overnighted.

So I consulted Chef Michele Casadei Massari, U.S.

blocks of parmesan on a cutting board and in the background, grape tomatoes and a carafe of olive oil

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Brand Ambassador for Parmigiano Reggiano,to ask some storage questions.

Store the cheese in a glass or plastic container or in cling wrap.

How Long Will Parmigiano Reggiano Last?

shredded parmesan and a block of parmesan on a cutting board and in the background, a box grater and a carafe with olive oil

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When vacuum-packed, the cheese can last in the fridge for several months.

Like all food items, check the best by date on your package for guidance.

Parmigiano Reggiano with a maturation of 24 months can be kept for about one month.

In other words, the more mature or “aged” the Parmigiano, the longer it will keep.

What Are Telltale Signs That Parmigiano Reggiano Has Gone Bad?

If your cheese has an acrid scent, toss it.

As long as you cut away any mold, you could continue enjoying the cheese.

With pre-grated cheese, the presence of mold means you should discard the whole container.

What’s the Difference Between Parmigiano Reggiano and Parmesan?

Massari reminded me there is a difference between parmesan and Parmigiano Reggiano (just like Nonna said!)

even if the terms are sometimes used interchangeably.

It must be produced in the provinces of Parma, Reggio Emilia, Modena, Mantua, or Bologna.

This protected cheese is also distinguished by unique aging processes.

The flavor of the two products vastly varies.