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    Home » Cheese Types » How Long Does Grated Parmesan Cheese Last?

    How Long Does Grated Parmesan Cheese Last?

    Published: Jul 16, 2022 by Eric Samuelson

    Learn how long you can expected for grated, shredded, or shaved Parmesan cheese to last and why you might want to consider grating it yourself.

    A grocery store display of containers of different types of Parmesan cheese.

    This post includes affiliate links. This means that at no additional cost to you, I will earn a commission if you click through and make a purchase. These are products and services I recommend because I use or trust them. Cookies will be used to track the affiliate links you click.

    There isn't much more disappointing when you are looking to top your meal off with some yummy Parmesan cheese only to discover it's moldy or stinky.

    No!!!!!!!

    You think maybe if I would have planned this better, it would not have happened. In a a lot of case that would be true. It comes down to learn how long you have with it in the first place before you need to be concerned about it going bad.

    For this post we aren't talking about the cheese that you find on a store shelf in a green canister that you shake out. We are talking about the real deal that you find in the refrigerated section of your grocery store.

    Jump to:
    • 📅 Best By Dates
    • 🗓️ How Long Does It Last?
    • ❓ Does It Matter What Type?
    • 🥶 Can You Freeze?
    • 💡 Top Tip
    • 🤚🏼 Grating Yourself
    • 🙋🏼 More Cheese Questions Answered
    A container of BelGioIoso grated parmesan cheese is being held at the grocery store.

    📅 Best By Dates

    On a June 29th trip to the grocery store, I examined the dates on the containers of Parmesan. One example was "Best by October 11", which is over 3 months away. That doesn't mean that it's going to suddenly go bad by the date, but it's what the company itself determines that their product is best eaten by.

    If there is a good deal you can easily stock up for a while and not have to worry about the quality.

    A container of Bella Rosa shredded parmesan cheese is being held at the grocery store.

    🗓️ How Long Does It Last?

    But does that change when you open it? Once open sometimes packages tend to indicate to use within 3-5 days of opening. I believe this is a suggestion more than a hard rule. I think it can last longer as long as you are keeping it dry and storing in the fridge when not using. A week or maybe more is not unreasonable at all. It will eventually go south.

    The back of a container of Crystal Farms shredded parmesan cheese is being held at the grocery store. The ingredients include Parmesan cheese, powdered cellulose to prevent caking, and natamycin (mold inhibitor).

    It also depends on if anything is added to the cheese. Some companies add other ingredients like cellulose or corn starch to prevent caking and natamycin (a preservative) as a mold inhibitor. On these packages I do not see a note to use by a certain date after opening as they expect their product to last longer.

    Be careful to read packaging, especially if you do not want any preservatives. Most containers do seem to have added preservatives. I did find a container from Bella Rosa that had no added preservatives, just cheese. BelGioOso sells both with and without at the time of the publishing of this post. You have to look for their All Natural Cheese Cups. Check the ingredient list.

    ❓ Does It Matter What Type?

    Does it matter if your Parmesan is grated, shredded, or shaved? Maybe a little. I think with the shaved pieces I have seen them get moldy quicker. The pieces tend to stick together more, so I think it's more likely for moisture to get trapped between the shavings giving mold a chance to grow.

    RELATED - A simple pasta dish using shredded or grated Parmesan cheese.

    🥶 Can You Freeze?

    Grated or shredded Parmesan could be frozen. Freezing will help prevent the cheese from developing mold. But do you need to freeze it? I do not find it necessary, so I haven't actually ever done it. I hear it could potentially affect the quality of the cheese. It lasts in the fridge long enough to not be any issue.

    What if you don't use it very often in your house? Maybe it's just you and one other person? That leads us into our top tip that will be beneficial for these households or any household.

    A wedge of BelGioIoso parmesan cheese is being held at the grocery store.

    💡 Top Tip

    If you want to not worry about your Parmesan going bad, then buy whole parmesan wedges. I have had them last for months without any issues whatsoever. I am not exaggerating. The only thing you are losing out out on is the convivence. It's often cheaper per pound.

    🤚🏼 Grating Yourself

    You can shave your own Parmesan by using a sharp knife, making thin cuts. But I think the easiest way is with a quality vegetable peeler, like the one from Zyliss. You just shave off pieces from the hard cheese. The type of peeler will decide how long or wide your pieces are. The standard sized peeler seems to work the best.

    You can shred or grate your own with a box grater. Use the small holes on the grater for grating and the larger holes if you to want to shred it. Always pick a box grater with 4 sides, so that's it's steady when being used. I am not a fan of ones that collapsible so you can store them better as they could easily collapse when you don't want them too.

    The graters that are just a handle and a grater are fine for small amounts but anything bigger it's easier to go with the box grater.

    🙋🏼 More Cheese Questions Answered

    Let's answer some more of your cheese questions.

    • Can You Use Gouda for Mac & Cheese?
    • What's the Difference Between Cheddar and Colby
    • What's the Best Cheese for Pizza?
    • What Can You Substitute for Muenster Cheese
    • Where Can You Buy Squeaky Cheese Curds?
    « What is Butterkäse Cheese Good For?
    How Long Do Panko Breadcrumbs Last? (Storage Tips) »

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    Hi! I'm Eric : Father of 4, living just south of Ann Arbor, MI. I'm a reformed picky eater finding a new way to not conform. Eating what's in season is my jam (I also make it!)

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