Shelf Life of
Marshmallows

How Long Do Marshmallows Last?

How Long Do Marshmallows Last?

Shelf Life of Marshmallows

How long do marshmallows last? The shelf life of marshmallows depends on the best before date and how they are stored. Marshmallows are made from mallow root sap, egg whites and sugar. They come in different shapes and sizes and now even in colors too for the holidays.

So, how long do marshmallows last? When properly stored, the shelf life of marshmallows past their best before date is …

(Unopened) Pantry
Marshmallows last for 6-8 Months
Marshmallow Fluff lasts for 6-8 Months
Marshmallow Peeps last for 6-8 Months
(Opened) Pantry
Marshmallows last for 2-4 Months
Marshmallow fluff lasts for 2-4 Months
Marshmallow Peeps last for 2-4 Months





But remember, like a lot of other sweets, they usually has a best before date and not a use by date. Because of this distinction, you may safely use them for your snacking pleasure or baking needs after the best before date has lapsed.

How to tell if marshmallows are bad, rotten or spoiled?

It is the texture and color that will change when they have been around too long. They will become sticky and change from a pure white color into a light yellow color.
Peeps, since they are coated in colored sugar, will not change color but will become hard as they loose moisture.
Practicing proper hygiene and food safety discipline will help prevent food borne illness.

How to store marshmallows to extend their shelf life?

The best way to store them is in an air tight container in the pantry. The original bag with a twist tie after opening works just fine.
Proper food storage is the key to extending the expiration date of food.

Interesting Facts about Marshmallows

  • The most popular recipe using marshmallows is S’mores, a recipe first introduced by the Girl Scouts of America in their handbook.
  • How long are marshmallows good for when prepared in a dish?

    How long do marshmallows last? That depends. How long does chocolate last? In general, they only last as long as the quickest expiring ingredient in the dish. To find out how long other ingredients are good for, please visit the Dairy, Drinks, Fruits, Grains, Proteins, Vegetables and Other sections of Eat By Date or search below!

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    What are our shelf life resources?

    Our how long do marshmallows last content incorporates research from multiple resources, including the United States Department of Agriculture and the United States Food & Drug Administration. In addition, we scoured the web for informative articles and reports related to food safety, food storage and shelf life.

    *An important note about expiration dates …

    Although the how long do marshmallows last information on Eat By Date is generally reliable, please remember that individual cases will vary and that our advice should only be taken as an opinion. So, how long will food last? Let’s find out!