The Best Way to Freeze Onion Soup

Can you freeze onion soup? – The Best Way

Soup is a popular choice for a comforting and healthy meal, especially during the winter months. It’s a versatile dish that can be made ahead of time and frozen for later consumption. While most soups freeze well, there are certain types that can raise some questions, such as onion soup. In this article, we will explore whether you can freeze onion soup and the best way to do so.

Freezing Onion Soup

Freezing onion soup is a simple process that requires a few steps to ensure that the soup retains its flavor and quality. Here is the best way to freeze onion soup:

1. Cook the soup

Start by cooking the onion soup as you normally would. However, if you plan to freeze some of the soup, remove it from the heat before it is completely cooked through. This will help preserve the texture of the onions and prevent them from becoming too soft and mushy when thawed and reheated.

2. Allow to cool

It is important to allow the onion soup to cool completely before placing it in the freezer. Placing hot food directly in the freezer can cause condensation, which can lead to poor quality and freezer burn. To speed up the cooling process, you can place the hot soup in a pot or bowl and submerge it in ice water. Stirring the soup frequently will help it cool faster. You can also divide the soup into smaller portions to further speed up the cooling process.

3. Portion the soup

If you have a large batch of Onion Soup and plan to freeze it for individual servings, it is a good idea to portion it out before freezing. That way, you can easily reheat individual portions without having to defrost the entire batch.

Storage containers for onion soup

There are several container options to choose from when freezing onion soup:

  • Quart-size freezer bags: These bags hold a single serving of soup and seal tightly. They can be stacked flat to maximize freezer space.
  • Freezer-safe containers: You can use either plastic or glass containers designed specifically for freezing. Choose a size that fits your portion size and make sure the seal is tight. Glass containers, such as those in the Rubbermaid Brilliance Collection, are a popular choice.
  • Muffin trays: Freezing onion soup in muffin trays is a clever trick. Pour the cooled onion soup into the individual holes of the muffin tray until they are full. Place the tray in the freezer until the soup is frozen. Once frozen, remove the portions from the tray and place them in a large freezer bag. This method allows for separate portions that are easy to grab and heat up without having to defrost the entire batch.

Tips for Freezing Onion Soup

Here are some additional tips for successfully freezing onion soup:

  • Avoid freezing croutons: Onion soup is often served with cheese croutons. However, freezing the soup with the croutons will result in sogginess and an undesirable texture. It is best to freeze the soup without the croutons and prepare fresh croutons when reheating.
  • Label the freezer container: It is important to label the container used to freeze the onion soup. Clearly write the name of the meal (onion soup) and the date it was frozen. This labeling practice makes it easier to identify the soup in the freezer and helps you keep track of its freshness.

How long can onion soup be frozen?

When handled and stored properly, Onion Soup can be kept in the freezer for up to 3 months. While it is still safe to eat after this time, the quality may deteriorate and the taste may not be as good as when made fresh. It is important to note that if you want to extend the shelf life of onion soup beyond 3 or 4 days in the refrigerator, freezing is the better option to prevent spoilage.

Refreezing Thawed Onion Soup

If you have thawed a large amount of onion soup but cannot eat it all, it is generally not safe to refreeze. This rule applies to most thawed foods, including onion soup. Refreezing can increase the risk of bacterial growth and affect the quality and safety of the soup.
In some cases, you may be able to refreeze partially thawed onion soup if ice crystals are still present, indicating that it hasn’t completely defrosted. However, it is still not recommended due to safety concerns.
Reheated onion soup that has been thawed should be eaten immediately and not returned to the refrigerator. Reheating and refreezing can cause bacterial growth and affect the quality of the soup.


Freezing onion soup is a convenient way to preserve this delicious dish for later enjoyment. By following the proper steps and using appropriate storage containers, you can freeze onion soup for up to 3 months without compromising its taste and quality. Remember to chill the soup before freezing, portion it if necessary, and choose appropriate storage containers such as freezer bags, freezer-safe containers, or muffin trays. Avoid freezing croutons with the soup and label containers for easy identification. Refreezing thawed onion soup is generally not recommended due to safety concerns. Enjoy the convenience of having homemade onion soup in your freezer for quick and satisfying meals.


Can I freeze onion soup?

Yes, you can freeze onion soup. It is one of the soups that freezes well.

How long can I freeze Onion Soup?

You can freeze onion soup in an airtight container for up to 3 months.

Should I allow the onion soup to cool before freezing?

Yes, it is important to allow the Onion Soup to cool completely to room temperature before placing it in the freezer. This will help prevent condensation and maintain the quality of the soup.

Can I portion the Onion Soup before freezing?

Yes, it is recommended to portion the Onion Soup before freezing, especially if you want to reheat individual servings without thawing the entire batch.

What containers can I use to freeze Onion Soup?

You can use quart-size freezer bags, freezer-safe plastic or glass containers, or muffin trays to freeze onion soup. Make sure the containers are airtight and well sealed to prevent freezer burn.