Can It Go Bad?

Product storage and expiration info.

Can Parmesan Cheese Go Bad?

Can parmesan cheese go bad? Parmesan is a type of Italian hard cheese with a long shelf life! That being said, this cheese won’t last forever, it will become rancid at some point. Parmesan cheese is often sold in large quantities. This means leftovers are inevitable.

The good news is, as long as the product is stored properly, there is no need to worry about spoilage at all. If you’ve got more parmesan cheese than you can handle, always check the storage instructions to extend its shelf life. Good parmesan cheese can be quite expensive and it’ll be a shame to waste such high-quality cheese!

Image used under Creative Commons from THOR

Can Parmesan Cheese Go Bad?

Generally, hard cheeses like Parmesan cheese will keep much longer than soft cheese. Parmesan will keep fresher for longer because of the reduced level of moisture within the product. The reduced level of moisture discourages mold growth.

But even when a small area of the cheese turns moldy, the cheese is still safe to eat. Just cut away the moldy spot and store the rest of the cheese. The storage life of parmesan cheese is limited and dependent on the storage conditions. It’s also worth noting that grated parmesan cheese has a shorter shelf life than blocks of parmesan cheese.

Signs that Parmesan Cheese Has Gone Bad

To check for signs of spoilage, look for the presence of mold. If you are seeing moldy spots all over the cheese, cut the moldy bits away. It’s also important to check for any discoloration and flavor changes. If the parmesan cheese took on a weird shade of dark yellow or gray, the cheese has gone bad and is no longer safe to eat. If the cheese emits moldy or pungent odors, throw the cheese in the trash.

How to Store Parmesan Cheese?

The best way to store grated cheese and Parmesan blocks is by keeping them in the refrigerator. Parmesan wedges or blocks should have their rind. Grated Parmesan cheese doesn’t require any prep at all. Just stick the container in the fridge and you’re done.

Image used under Creative Commons from THOR

For parmesan blocks, we recommend covering the product in cling wrap or aluminum foil before storing the cheese in the fridge. The extra protection will keep fridge odors away. The wrapper will also inhibit moisture loss so the cheese won’t dry out too much while in storage.  Keep the storage temperature between 39 to 46 degrees Fahrenheit for best results. When kept in the fridge, parmesan cheese will keep fresh for a year or longer if the temperature is stable.

Can You Freeze Parmesan Cheese?

Freezing is not necessary because parmesan cheese has a long shelf life. But if you must, you can freeze the cheese. However, the freezing temperature could decrease the quality of the cheese. The parmesan cheese could lose its original texture and flavor as soon as it is thawed.

Frozen parmesan cheese is best used for cooking sauces, soups, and casseroles. To freeze the cheese, place it in a freezer-safe, airtight container. The container should be sealed at all times to protect the cheese from frost and freezing temperature.


Parmesan cheese adds depth and character to any dish, particularly salads and pasta dishes. Can parmesan cheese go bad? Yes, it could go bad at some point but this product has a long shelf life. You’ll have no trouble using up your stash especially if you are a cheese lover!

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