Shelf Life of
Mayonnaise

How Long Does Mayonnaise Last?

How Long Does Mayonnaise Last?

Shelf Life of Mayonnaise

How long does mayonnaise last? How long does Miracle Whip last? The shelf life of mayonnaise regardless of such things as the sell by date, use by date, or best before date is not very long. Mayonnaise, or Mayo for short, despite it’s high concentration of fat is a tricky one – it can look fine, but make you very sick. So, how long does mayonnaise last past the sell by date? When properly stored, the shelf life of mayonnaise (mayo) past its sell by date is approximately …

Unopened Pantry
Past Printed Date
Mayonnaise lasts for 1 Week
Miracle Whip lasts for 1 Week
Opened Refrigerator
Mayonnaise lasts for 1 Month
Miracle Whip lasts for 1 Month



But remember, mayonnaise, like a lot of other condiments, usually have a best by date and not a use by date or expiration date. Because of this distinction, you may safely use mayonnaise to compliment your favorite meals or snacks for a short time after the best before date has lapsed.

How to tell if mayonnaise is bad, rotten or spoiled?

Practicing proper hygiene and food safety discipline will help prevent food borne illness. Mayonnaise will begin to look a little more yellow instead of its normal creamy white color and then will get thicker and lumpy over time as it ages. Always discard the entire container if any mold (mould) is visible. With mayonnaise the advice is – when in doubt, throw it out! There are health risks with consuming bad or spoiled mayonnaise.

How to store mayonnaise to extend its shelf life?

Proper food storage is the key to extending the expiration date of food. Refrigerate right after opening and keep it there all the time, except for the brief time to spread it one your sandwich of course. Some benefits of proper food storage include eating healthier, cutting food costs and helping the environment by avoiding waste.

How long is mayonnaise good for when prepared in a dish?

How long does mayonnaise last? That depends. How long does bread last? In general, mayonnaise will be the quickest spoiling item that you will probably put in a dish. So, serve the macaroni or potato salad and then return it to the refrigerator as soon as possible and then consume the leftovers within 2 -3 days. If you had the dish sit out at a picnic, I recommend just tossing the leftovers while packing up to go home. To find out how long those 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 shelf life of mayonnaise 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 the shelf life of mayonnaise.

*An important note about expiration dates …

Although the mayonnaise shelf life 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!