Can you eat mayo after the expiration date?

In this article we are going to answer can you eat mayo after the expiration date, what is the use-by date, what is the expiration date, what happens if you eat mayo after the use-by date, how long does mayo last, how do you know if your mayo is no longer good and how to store mayo for it to last longer. 

Can you eat mayo after the expiration date?

Mayo does not have an expiration date because its nutritional value does not change after a certain date, instead, mayo has a best-by or use-by date which the brand recommends the consumer to eat before that date. 

Mayo can be eaten even after the use-by date as long as it has been stored correctly. Mayo can last up to 2 to 3 months unopened after the use-by date. 

What is the use-by date?

Best by date or use-by date tells the consumer that food is no longer fresh or in the same shape, texture, and taste as when you bought it. It might lose some freshness, taste, aroma, or nutrients but it doesn’t mean that the product has gone bad and is no longer safe to eat. 

The safety, freshness, and taste of the products depend on how it has been stored. So, if the product has not been handled correctly, it can lose all its qualities long before the best-by date. 

What is the expiration date?

The expiration date in the product tells the consumer the last day a product is safe to consume. The expiration date is not in all products. It is required on certain products that have a specific nutritional composition that could change after the expiration date. 

The expiration date is required in some products such as

  • Liquid diets
  • Foods sold by a pharmacist
  • Meal replacements
  • Nutritional supplements
  • Infant formula 

If a product has passed the expiration date, it should not be consumed.

What happens if you eat mayo after the use-by date?

Mayo can last long enough for you to be safe to eat but because it is made with eggs, even if they are pasteurized, there is a high risk of food poisoning if you consume spoiled mayo. 

Food poisoning or also called foodborne illness is caused when you eat something that is contaminated with bacteria, viruses, or parasites. Sometimes you don’t have to ingest the virus or bacteria, it is enough by eating their toxins to have symptoms of food poisoning. 

Symptoms might start within an hour of eating contaminated food. Symptoms include

  • Vomiting
  • Nausea
  • Stomach pain
  • Diarrhea
  • Fever

The whole sickness caused by food poisoning can last one day to several days. Food poisoning is life-threatening to immune-suppressed patients, the elderly, pregnant women, and young children. 

The most common microbes that can be found in spoiled mayo are lactobacilli, yeasts, and bacilli all of which can cause food poisoning symptoms. 

How long does mayo last?

Mayo has a long shelf life as long as it has been stored correctly. Unopened mayo can last up to 3 months in the refrigerator after the use-by date. Once open, the clock starts ticking and the shelf life of mayo is reduced. 

As long as it is in the refrigerator, mayo can last up to 6 to 8 weeks in the refrigerator with a good lid to keep contaminants away. 

How do you know if your mayo is no longer good?

Any visual change in mayo can tell you that it has started to go bad. Some things you can look for to know if mayo is bad include

  • Change in color 
  • Change of taste
  • Weird smell
  • Mold

Any visible change on any of these indicated that mayo is spoiled. 

How to store mayo for it to last longer?

If the presentation of mayo you bought lets you, it can be stored in your pantry if it is still unopened. Once open, mayo needs to be stored in the refrigerator. According to the USDA, mayo should not be at room temperature for more than 8 hours once open. 

Humid and very high temperatures will make your mayo spoiled faster. 

Follow this link for more information on how to store mayo.

Other FAQs about Mayonnaise that you may be interested in.

Can you eat mayo on keto?

 Can you eat Mcdonald’s mayo when pregnant?

Can you eat mayo when pregnant?

Conclusion

This article answered can you eat mayo after the expiration date, what is the use-by date, what is the expiration date, what happens if you eat mayo after the use-by date, how long does mayo last, how do you know if your mayo is no longer good and how to store mayo for it to last longer

Citation

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC377300/

https://www.stilltasty.com/fooditems/index/17668#:~:text=How%20long%20does%20opened%20mayonnaise,By%22%20date%20on%20the%20package.

Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.