How Long Does Mayonnaise Last in the Fridge?

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Mayonnaise, that creamy and versatile spread, adds a delightful touch to sandwiches and salads alike. But how long can it reside in your refrigerator before it turns bad? Let’s delve into the world of Mayo shelf life and storage tips.

How Long Does Mayo Last in the Fridge?
Here’s the scoop: unopened mayo straight from the store can stay in your fridge for about 1-2 months past the sell-by date. However, once you crack open that jar or container, the clock starts ticking. Once opened, mayo typically remains fresh for about 2 months when stored in the fridge.

How Can You Tell if Mayo Has Gone Bad?
Time for the sniff test! The most reliable way to determine if your mayo has gone off is by giving it a good whiff. If it smells off or sour, it’s time to say goodbye. Additionally, keep an eye out for any changes in texture or color. If it appears oddly chunky or discolored, it’s best to discard it.

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How Long Can Opened Mayo Be Left at Room Temperature?
Mayo and room temperature aren’t the best of friends. Once you open that jar, it’s crucial to keep your mayo refrigerated. Leaving it out for extended periods, especially in warmer environments, can hasten spoilage. So, it’s advisable not to leave opened mayo at room temperature for more than a couple of hours.

Storage Tips for Maintaining Mayo Freshness:
To help your mayo stay fresh for longer, here are some handy tips:

1. Keep it Cool: Store mayo in the fridge at a consistent temperature, ideally below 40°F (4°C).

2. Seal it Tight: Always tightly seal the container after use to minimize air exposure.

3. Prevent Cross-Contamination: Use clean utensils when scooping out mayo to avoid introducing bacteria.

Remember, these are general guidelines, and factors like fridge temperature and air exposure frequency can influence Mayo’s shelf life.


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In summary, unopened mayo lasts longer than opened mayo. Once opened, it’s typically good for about 2 months when stored in the fridge. However, always trust your senses – if it smells off or looks odd, it’s time to bid farewell to your mayo companion.

And there you have it – everything you need to know about mayo’s shelf life. Whether you’re preparing a sandwich or a salad, keep an eye on the mayo expiration date and give it a sniff before using it.