Food Preservation

Can You Freeze Onion Soup? Easy Guide to Freeze Onion Soup at Home

In this article, you will know the answer to the query “Can You Freeze Onion Soup? Easy Guide to Freeze Onion Soup at Home“.

It would help if you always kept some soup in your freezer since soup is the perfect winter meal.

So if you don’t feel like cooking, but need something warm and wholesome in no time, you can still enjoy hearty soups.

While freezing soups, onion soups usually find themselves in the awkward position of being too close to raw onions.

Although the taste may not come through as clearly, these soups remain deserving contenders for hearty winter meals.

Is it possible to freeze onion soup? The soup can be stored frozen for three months in an airtight container.

Refrigerate the soup after it has cooled completely.

To be able to reheat each portion when you get home from work on a cold night, you may want to divide the soup into portions before freezing.

There are a few steps involved in freezing onion broth, and some basic knowledge is needed.

How to Properly Freeze Onion Soup?

You can freeze onion soup easily.

There are only a few steps you need to follow to make sure your soup stays cool in the freezer.

The following are the steps you need to take to freeze onion soup properly:

As usual, the soup should be cooked. If you plan to freeze some soup, make sure to remove the portions you won’t be using.

When thawed and then reheated, this step helps preserve the onion’s texture and prevents it from becoming too mushy.

It is also possible to cook the soup following your favorite recipe if that is not possible.

Cool it down before freezing – Hot food can’t be frozen.

In turn, this can cause condensation in the freezer container, which can lead to poor quality food and freezer burn.

Allow the onion soup to cool at room temperature.

If you’re in a hurry, you can heat the soup in a bowl or pot, and then pour ice water into your sink.

Stirring it frequently will make it cool down more quickly. Portioning out the soup will speed up the cooling process.

You can put the entire batch in a large freezer bag or container if you are freezing it for a family meal.

Whenever you have a leftover soup that is too large to be eaten in one sitting, you will need to freeze it in smaller portions.

Choosing Containers to Store Onion Soup

When you freeze soup, you have several options for storing it in the freezer.

In a Quart of freezer bags, one serving of soup can be stored.

Because freezer bags can be stacked, they are a great space saver.

You should freeze soup in freezer-safe containers. Choose the right-sized container to fit your portion and ensure the lid is tight.

Our favorite glass containers are the Brilliance Collection by Rubbermaid.

It is a wonderful trick to freeze onion soup in muffin trays.

The steps are as follows:

After the onion soup has cooled, pour it into muffin cups and bake for 20 minutes.

For best results, freeze the muffin tin for at least two hours or overnight.

Place it on the counter and let it sit for up to 20 minutes after freezing.

The individual soup portions can be easily removed this way.

To remove all of the portions, place them in a large plastic bag.

The following method allows you to freeze individual portions of the soup while keeping them separate, but in the same bag.

When you are ready, you can heat up a handful quickly without having to defrost everything first.

How Long can Onion Soup Be Frozen?

When stored and handled properly, onion soup can be stored for up to three months in the freezer.

After three months, it will not taste as good, even though it will still be delicious.

Soup made with onions can be enjoyed within three to four days if refrigerated.

You should freeze onion soup to ensure it doesn’t spoil before you eat it if you want to extend its shelf life.

After being frozen for a long period of time, the soup might also taste different.

This does not mean that the soup is bad to eat; simply that you should expect it to taste differently.

After three months, you should throw away the soup if you are not going to consume it.

Is it Possible to Refreeze the Thawed Onion Soup?

It might be necessary to refreeze onion soup if you have thawed large amounts.

It is unsafe to refreeze onion soup once it has thawed.

When food has thawed, the same rule applies.

If you have left onion soup to thaw inside the fridge, and if it has ice crystals, you can refreeze it, but it is not recommended.

It is even more dangerous to refreeze onion soup that has been thawed.

All soup leftovers should be thrown out after reheating, thawing, and reheating. Do not store leftovers in the refrigerator.

It is too risky to eat food contaminated with pathogens. If onion soup is reheated, its quality will be compromised.

Therefore, freezing individual portions is a smart decision.

In this way, you can thaw as many portions as you think you’ll finish in one meal without worrying about overeating.

Does Onion Soup Expand When Frozen?

Yes, that’s right.

Do not fill the container all the way with onion soup if you don’t want it to expand in the freezer.

To prevent the container from breaking when it freezes, you should leave some room for expansion.

When you fill a container or bag in your freezer without allowing for expansion, the onion soup may pop out and cause a mess.

How to Reheat Frozen Onion Soup?

Before reheating onion soup, let it sit in the fridge overnight to allow it time to thaw.

You can reheat the packaged soup either in the microwave or on the stove.

Use the microwave for 3 minutes at full power if you are using one.

Reheating on the stovetop might take longer and require some stirring to ensure it heats evenly.

How to Tell if Onion Soup Has Gone Bad?

Seeing the color of onion soup alone is difficult to tell whether it’s gone bad since it doesn’t change.

Onion soup can only be judged by smell and taste if it has gone bad.

Moldy onion soup should not be eaten if there is any evidence of its deterioration.

You should avoid eating something that smells strange or has an off-flavor.

Also, any onions that have not been cooked and still have their raw texture should be thrown out.

When your onion soup no longer tastes fresh, toss it and make a new batch rather than risk getting ill from it.

You can still taste your soup before serving it if it looks and smells normal.

As long as your soup hasn’t gone bad and still smells and tastes fresh, you can eat it.


In conclusion, onion soup can be frozen for a limited period of time, but not for long.

You should make a fresh batch of onion soup instead of using the old one if you intend to freeze it.

Enjoy your soups while they’re frozen since freezing doesn’t significantly affect their taste.

You should let your onion soup sit overnight in the refrigerator to thaw properly before reheating it.

You should be fine if you keep these guidelines in mind.

You’ll enjoy your soup.

Can You Freeze Onion Soup? Easy Guide to Freeze Onion Soup at Home


10 minutes


10 minutes


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  • French onion soup
  • Air-tight containers or Ziplock bags
  • Labels and markers


  • Prepare all the mentioned equipment and ingredients in the article.
  • Follow the steps for proper freezing.
  • Label the container with the date and contents.
  • Depending on the recipe, thawing time may vary.

If you want to read more about food preservation, read here: FOOD PRESERVATION.

Ayub Khan

Ayub Khan is an accomplished culinary author with a passion for cooking and 6 years of experience. His creative ideas and valuable tips inspire readers to explore new flavors and take their culinary skills to the next level.

Rehmat Dietitian

Rehmat is a certified food dietitian having experience of 10 years in reviewing and practicing on foods different aspects.

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