How long does homemade mayonnaise last in the fridge?

In this brief guide, we are going to answer the question “How long does homemade mayonnaise last in the fridge” with an in-depth analysis of the shelf life of homemade mayonnaise. Moreover, we are going to discuss the different ways to spot spoiled homemade mayonnaise.

So without much ado, let’s dive in and figure out more about it.

How long does homemade mayonnaise last in the fridge?

Homemade mayonnaise lasts for about 5-6 days if kept at or below 40 degrees Fahrenheit. But it is recommended to use it within 3-4 days to enjoy its optimum quality and flavor.

It is best to store homemade mayonnaise in airtight plastic zipper bags or air-tight containers on one of the refrigerator’s shelves.

It’s worth noting that the values given above are for homemade mayonnaise’s expected shelf life.

What is the best temperature to keep homemade mayonnaise at?

homemade mayonnaise should be kept at 40 degrees Fahrenheit or lower at all times. Bacterial development is more rapid between the temperatures of 40 and 140 degrees Fahrenheit, therefore it’s best to keep your homemade mayonnaise at a lower temperature to keep it fresh for longer.

How long does homemade mayonnaise last at room temperature?

When kept at room temperature, homemade mayonnaise lasts for around 4-8 hours.

Because bacterial growth occurs at a quicker rate between 40 and 140 degrees Fahrenheit, homemade mayonnaise left out for more than 8 hours should be discarded.

How long does homemade mayonnaise last in the freezer?

Homemade mayonnaise lasts for a couple of months in the freezer if stored in an airtight plastic freezer bag. No doubt, freezing the homemade mayonnaise extends its shelf life significantly due to the freezer’s low temperature, which inhibits bacterial growth on the homemade mayonnaise but at the same time, it negatively impacts the texture and flavor of the mayonnaise and thawed mayonnaise will have a watery texture.

How to defrost frozen homemade mayonnaise?

You can quickly defrost frozen homemade mayonnaise by placing it in the refrigerator overnight, and thawed homemade mayonnaise can be stored in the refrigerator for 3-4 days before reheating and consuming it.

If you’re defrosting frozen homemade mayonnaise in a bowl of cold water or on the counter, you should utilize it right away.

How to vacuum seal homemade mayonnaise? 

You may even vacuum seal your homemade mayonnaise at home to extend its shelf life. It involves placing the homemade mayonnaise in a plastic zipper bag, eliminating the air, then nearly sealing the bag with a small amount of space remaining while lowering it into water.

After that, start pressing out the bubbles starting from the bag’s bottom and work your way up to the sealed end, closing the bag’s seal. 

A vacuum sealer pump can also be used to easily vacuum seal homemade mayonnaise at home.

What are different ways to spot spoiled homemade mayonnaise?

There are a few clear indicators that indicate if your homemade mayonnaise has gone bad. To determine if homemade mayonnaise has gone bad, look at its appearance, texture, and smell.

Appearance

If you see mold or other organic growth on your homemade mayonnaise or if it has off-colors, it’s time to throw it out.

It’s worth noting that you should avoid smelling moldy homemade mayonnaise since molds can produce mycotoxins, which can disturb your gut microflora and damage your immune system if they enter your body by inhalation.

Texture

If you notice that the homemade mayonnaise has curdled or has lumps or is extremely watery, it’s time to throw it out.

Smell

If you smell something extremely sour or foul while sniffing your homemade mayonnaise, it’s time to throw it out.

Lastly, I do not recommend tasting homemade mayonnaise with a foul odor, but if you are brave (and silly) enough, you will notice a significant change in the texture and mouthfeel of the spoiled homemade mayonnaise. It will have an off-flavor.

Thus, if the microbes have somehow gotten into your homemade mayonnaise and spoiled it, the best thing you can do is throw it out.

How to properly store mayonnaise?

  1. Keep unopened jars of mayonnaise away from heat sources in a cold, dry place.
  1. Refrigerate your mayonnaise jar once it’s been opened.
  1. Avoid exposing your mayonnaise to extreme heat. Keep clear of direct sunlight.
  1. If possible, use pasteurized eggs when making homemade mayonnaise. In the refrigerator, homemade mayonnaise should last approximately a week.
  1. Because microscopic organisms grow quickly at temperatures between 40°F and 140°F, it is best to refrigerate the homemade mayonnaise in airtight containers to extend its shelf life while keeping its quality.
  1. If you wish to extend the shelf life of homemade mayonnaise, keep it in an airtight container in the freezer. The homemade mayonnaise that has been frozen at 0°C is safe to use for extremely long periods.
  1. Homemade mayonnaise should be stored in shallow compact containers to allow it to cool quickly.

You can read how to make mayonnaise here.

Conclusion

In this brief guide, we answered the question “How long does homemade mayonnaise last in the fridge” with an in-depth analysis of the shelf life of homemade mayonnaise. Moreover, we discussed the different ways to spot spoiled homemade mayonnaise.

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