How long do Pickled Onions last? [Tested Facts]

How long do Pickled Onions last

Pickled onions are the kind of side dish that stands out on its own most of the time. My love for pickled onions grew when I first tasted them with barbeque. And I was like, Damn! I need to eat this thing more often. 

If you are like me, welcome to the club. Sweet, salty, and sour pickled onions are found and made almost everywhere worldwide with their unique recipes. 

If you tried such a recipe at home and made some pickled onions for your family. Or you have bought some jars from your nearby grocery store. 

It has been a few months since you have stored pickled onions in the fridge; you just don’t know how long pickled onions last. Is it good to consume them?

Well, you have nothing to worry about. I am here to answer all your queries regarding how long they will last and how you can store your delicious pickled onions. 

Generally, pickled onions last around a month or two but can vary depending on different situations. 

Do Pickled Onions go Bad?

The faith that every mouth-watering delicious food item has to meet is them going bad. We don’t want them to go bad, but pickled onions eventually go bad. But you will have a long time to consume your pickled onions before that. 

Pickled onions have a fairly long shelf life.

The reason for pickling is for better preservation of fruits and vegetables, which would generally go bad in a few days. 

The shelf-life of pickled onions depends on how you store them and where. 

It also depends on whether your pickled onions are store-bought or homemade. 

Let’s learn more about the shelf-life of pickled onions in detail: 

Don’t have time, here’s a quick Table.

Pickled OnionsIn JarFridge Freezer
Store Bought & Opened 2, 3 hours 2 to 3 months12 months
Store Bought & Unopened12 months12 to 18 monthsNo Need
Homemade2 hours2 to 4 weeks10 to 12 months

How long do Pickled Onions last in a Jar?

If you are making some pickled onions at home, then the best way to ensure that your pickled onions will maintain their quality is by storing them in a jar, especially a mason jar same as pickled eggs.  

A jar that can be tightly sealed is crucial for your pickled onions to last fresh and retain their flavor for a longer time. 

In a jar, your pickled onions would last around a month or two in the fridge or even 5 months if stored in proper conditions.

To preserve your pickled onions with more caution, you can sterilize your jars before storing pickled onions in them. 

How long Pickled Onions in Jar Last
Storing Pickled Onion in Jar

Did you know: Once the pickled onions have reached the spice level you wanted, you can remove spices from your pickled onions if you don’t want them to have a stronger aroma. 

How long do Pickled Onions last in Fridge?

The best place to store your salty and sweet pickled onions is the fridge. You should store your pickled onions in the fridge also for marination purposes. This is because as time passes, the onions get more marinated and pickled, enhancing their flavor. 

Some say that, and from my personal experience, your pickled onions would have the best flavor to let them stay in the fridge for a few weeks untouched. You should try it. 

If you keep your homemade pickled onions in the fridge, it would last around 4 weeks and can be 4 to 6 months, depending on your recipe and storage conditions. 

If you have an unopened jar or can of pickled onions you bought from the store, that will last around a year in the fridge. It’s not needed, but you can if you want to ensure its quality. 

Canned or jarred, both types of pickled onions bought from the store can be stored in the fridge. Just be aware of their “Best By” date or expiration date. And also, remember that the “Best By” date determines the quality of the food item, not the safety. 

How long do Pickled Onions last once opened?

There are a variety of brands selling pickled onions all around the world. You had a craving for pickled onions, and you decided to buy them from a store. 

You bought it at home and opened it. Now, once your jar or can of pickled onions, you should not leave them at room temperature for more than 2 to 3 hours. After that, they may slowly start to go bad. 

You definitely won’t want that to happen. Hence you need to store them in the fridge in the proper conditions.

Assuming that you have stored them properly, your pickled onions would last around 2 to 3 months in the fridge. 

The store-bought pickled will last longer than the homemade pickled onions due to added preservatives in the store-bought ones. 

If you want your pickled onions to last longer, you can store them in the freezer to ensure their longevity. 

How long does Pickled Onions last once opened
Pickled Eggs in Bowl

How to make Pickled Onions Crunchy?

Are you someone who likes your pickled onions crunchy or soggy? Some like their pickled onions soggy, and it is easy for them to have soggy pickled onions. 

But, if you like your pickled onions crunchy, then that is tricky. You see, in a solution of liquid, your onions or any vegetables, they will likely get soggy sooner than you think. 

One of the ways to make pickled onions crunchy and ensure they stay that way is by not cutting them up. You can make pickled onions out of whole onions, almost the size of a small ball like a ping pong ball. This way, the liquid will take more time to make the whole onion soggy and mushy. 

But, if you want your onions to be cut into fine pieces, it is best not to boil your water and vinegar solution. Just mix them and directly our into a jar containing onions. 

For some, this method works, but eventually, they would get soggy. But they get too soggy than usual it’s a sign that they have gone bad.

How do you make Pickled Onions last longer?

You can store your homemade pickled onions in your fridge to ensure they last longer and have the richest flavor! 

Also, storing them in the colder parts of the fridge is a way to make them last longer. 

Remember, whenever you take them out, put them in a clean utensil and then afterward store them in the colder parts, avoiding the door of your fridge.

If you have vacuum sealed your pickled onions, rest easy as they will last for about 2 years in the freezer.

In the case of opened or unsealed pickled onions jar, you must use them compulsorily within a few months if you store them in the fridge. Remove them in a separate container if the vacuum seal of the jar is broken. This will help to preserve your pickled onions. 

How do I know if Pickled Onions are Bad?

Some specific signs show that your tasty pickled onions have now gone bad. They are as follows:

1. If you observe a change in the color of the Onions, then they have gone bad, and you need to throw them away.

2. Also, if a slimy texture starts developing on the onions, they are not safe to consume anymore, and you must trash them away.

3. If molds have formed on onions or if the tangy flavor of the onions is no tangier, then it is clear that your pickled onions have gone bad.

Remember – Keep your pickled onions away from the sunlight all the time, as sunlight will act as a catalyst and make them go bad sooner.


I hope I have answered all your queries regarding how long will your pickled onions will last and made you aware of some of the ways how to preserve them. 

Sterilizing your jars before storing pickled onions is a step you must always follow.

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