Have you ever wondered if that block of parmesan cheese sitting in your fridge for months is still good to eat? It’s not uncommon to find leftover cheese in our refrigerators, and it’s always a concern whether or not it has gone bad. Let’s explore the question: does parmesan cheese go bad?

What is Parmesan Cheese?

Parmesan cheese is a hard, aged cheese that originated from Italy. It is made from cow’s milk and has a distinct nutty and salty flavor. It is commonly used in cooking, particularly in Italian dishes such as pasta, risotto, and pizza.

How to Store Parmesan Cheese

Proper storage of parmesan cheese can significantly influence its shelf life. If stored correctly, it can last for several months without going bad. Here are some tips on how to store parmesan cheese:

Refrigeration: Once you open the package of parmesan cheese, you should refrigerate it immediately. Wrap the remaining cheese tightly in plastic wrap or aluminum foil to prevent air exposure. Then, place it inside an airtight container or resealable bag and return it to the refrigerator.

Freezing: Freezing is another option for storing parmesan cheese. Wrap the block of cheese tightly in plastic wrap or aluminum foil and put it inside an airtight container or resealable bag before putting it into the freezer. Parmesan cheese can last up to 6 months when properly frozen.

How to Tell if Parmesan Cheese Has Gone Bad

Like any other food item, parmesan cheese can go bad over time. Here are some signs that your parmesan may have gone bad:

  • Mold: If you notice any mold on the surface of your parmesan cheese, it’s a clear indication that it has gone bad.
  • Texture: If the cheese has become excessively hard, dry or crumbly, it may have gone bad.
  • Smell: If the cheese has a strong or unpleasant odor, it’s another indication that it has gone bad.


In conclusion, parmesan cheese can last for several months if properly stored in the refrigerator or freezer. However, if you notice any mold growth, changes in texture or smell, it is best to discard the cheese. Remember to always practice good food safety habits when handling and storing perishable food items.