Does Mayonnaise Go Bad? How Long Does Mayonnaise Last?

Mayonnaise is one of the best things we humans have created. It is a thick creamy sauce usually made from egg yolks, vinegar, and oil.

However, we can also find eggless mayonnaise in the markets. You can use it in salads, sandwiches, or as dips to almost anything under the sky. You can never go wrong with it.

We can find at least one bottle or jar of mayonnaise in almost every kitchen. Just like ketchup, hot sauce, and BBQ sauce, we use it so often in our foods, so we must make sure that the mayonnaise is fresh and good, as eating bad mayonnaise can make you sick with food poisoning.

The question which we need to ask is - does Mayonnaise go bad? In this article, we will tell you everything you need to know about how long a bottle of Mayonnaise can last, why and how it goes bad, and everything else which will help you with knowing exactly when to throw your mayonnaise out.

How Long Does Mayonnaise Last? Does Mayonnaise Go Bad?

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Mayonnaise, just like any other thing in the world, does go bad over time. But the shelf life of your mayonnaise will be different depending on whether it is home-made or store-bought. Usually, industrial packaged mayonnaise lasts longer than the simple homemade counterpart.

According to Dr.Karen Latimer, a bottle of store-bought mayonnaise can last for many months, if it is unopened and stored away from sunlight because industrial mayonnaise contains preservatives to give it a longer shelf-life.

If you have opened the bottle or jar, it should be refrigerated right afterward. This way, your mayonnaise can last about 2-3 months, or up to the expiry date as given by the manufacturers.

On an average, homemade mayonnaise can only last up to a week; even when we store it in the fridge. Mainly because of the use of raw egg yolks. It is therefore highly recommended that you use pasteurized eggs and also add more amount of vinegar.

However, according to Iosune’s article,  even eggless mayonnaise can last only up to 3-4 days or a week at the most if it is homemade since they don’t have preservatives.

So while it is more convenient to buy a jar or bottle of mayonnaise from the stores as these can last much longer and tastes the same of sometimes even better, it is always the healthier option to make your mayonnaise at home.

How to Tell If Mayonnaise Is Bad? Mayonnaise Shelf Life!

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Just like any other food, the first sign that your mayonnaise has gone bad is the smell. Some other indicators which show that it has gone bad are:

  1. 1
    It will start to give out a very unpleasant odor, which will usually be slightly acidic.
  2. 2
    Look for any mold or other growth along the edges of the jar or bottle, or on the surface of the mayonnaise. Exposing the mayonnaise causes this, including not storing properly or contaminating with other food particles, such as breadcrumbs.
  3. 3
    In Fred Decker’s article, he has pointed out that spoiled mayonnaise will also start to split or separate. If some liquid starts collecting in the depression left by your spoon, after you have scooped out a spoonful of mayonnaise, it means that you should most probably throw it out into the trash. Bacterial overgrowth causes this situation.
  4. 4
    Good, fresh mayonnaise is usually white with a very slight yellowish tinge. Experts tell us that any discoloration will indicate that there is something wrong with the mayonnaise. You can always tell when mayonnaise has gone bad if it has an unusually darker, brownish color.

Conclusion

Although mayonnaise is one of the more quickly perishable food products, it is also one of the most popular all over the world. We can eat mayonnaise with a very long list of food items. It not only makes the simple foods look better but also makes them tastier and more fun.

With the tips we provided, we hope you can now tell if your mayonnaise is still fit to eat or not. You can enjoy your mayonnaise for a longer time if you store it properly. We hope that you can have all the best food experiences with mayonnaise.

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