Do Marshmallows Expire?

In this brief article, we will answer the question, “do marshmallows expire?”. We will also discuss in detail the shelf life and storage methods of marshmallows.

Do Marshmallows Expire?

Marshmallows do go expire after a while, but it takes a long time for them to spoil. Every packet of marshmallows will have the best-by date.

Rather than saying “when the marshmallows will be at their finest,” we should say “when the marshmallows are at their peak.”

Even beyond the “best before” date, the marshmallows will remain light, fluffy, and tender, but will harden and lose their flavor. As long as they are consumed in moderation, they are safe to eat.

Just to be sure, check to see if any indications that the marshmallows have gone bad are there.

What Is the Shelf Life of Marshmallows?

The shelf life of marshmallows ranges between two months and six months, depending on the manufacturer. It is common to see a best-by date printed on most bags. If the container is unopened, the marshmallows should remain edible for a few weeks after the expiration date.

You should try to consume them as soon as possible after opening the packet. You should consume the sweets within one week, as some producers propose.

As time passes, the eggs will gradually harden and lose their quality. As such, the food is perfectly safe to consume after a month but is unlikely to have its original flavor. Freezing your sweets for longer than two weeks is usually a good idea.

Below is the estimated period of storage.

Marshmallows (unopened)Best-by + 1 month
Marshmallows (opened)1 – 2 weeks

How Do You Know If They’re Bad?

Marshmallows that have gone rotten might vary in color and flavor. For example, if you have stored a bag of marshmallows in a damp environment for a prolonged time, then this is particularly true.

Storage of marshmallows that are not appropriately packed will stick together. Rather, the melting sugars cause the marshmallows to turn goopy. The texture of aged or badly preserved marshmallows is somewhat chewy.

How to Keep Marshmallows Safe?

Modern marshmallows are made by combining gelatin, sugar, and water. Marshmallows are shelf-stable delicacies, as, despite their high water content, they do not go bad. So long as you keep them cold and dark, you may store them in a cool, dark spot.

At room temperature or slightly below is the optimal temperature for keeping the temperature. Therefore, a dark pantry or kitchen cabinet is a great place to stash spices and other non-food items. This may be true if you live in a warm, tropical climate, particularly if you have had problems with marshmallows sticking together before.

Once you have opened the bag, here are a few points to bear in mind. Above all, they must be sealed to avoid drying out since they will harden if exposed to air. To provide the best results, the most basic approach is to seal the open package in an airtight container. Also, because marshmallows attract strong smells from their environment, it is vital to close the bag well.

Lastly, if you opt to keep leftovers in the fridge, make sure they are kept in an airtight container to prevent moisture from the air from reaching them. Thankfully, an airtight container fulfills all of these needs.

Use a spoonful of cornstarch to prevent your marshmallows from sticking together after they have been stored in an airtight container for a long period. In this way, the gumminess will be lessened.

Other FAQs about Marshmallows which you may be interested in.

Can you roast marshmallows on a gas stove?

Can you get sick from eating expired marshmallows?

Is it Possible to Freeze Marshmallows?

Marshmallows remain firm even after they freeze. Even though most suppliers are not open about freezing their items, consider trying.

If the bag is closed, there is no use in doing anything else. To make things even easier, simply freeze the bag before you head out. Once the candy packaging has been opened, transfer the candy to an airtight container or freezer bag.

Additionally, while packing the candy in a container, be mindful that it should not be packed too tightly, otherwise it might be damaged when frozen. Keep the marshmallows in an airtight container to preserve freshness.

The fridge is the finest defrosting choice, as it is always. If the marshmallows become sticky, sprinkle them with powdered sugar or cornstarch. After some thorough shaking, the marshmallows should be ready to use.


In this brief article, we answered the question, “do marshmallows expire?”. We also discussed in detail the shelf life and storage methods of marshmallows.