
Freezing soup is a great way to preserve leftovers and ensure you always have a delicious meal ready to heat and serve. It is safe to freeze soup in plastic containers, but not all plastics are made equal. It is important to choose containers that are made from safe plastics and do not contain polyvinyl chloride, polycarbonate, or polystyrene. These compounds may break down during freezing, compromising the container and allowing chemicals to leach into your food. Freezer-safe plastic containers should be heavy-duty and marked with a snowflake icon to indicate their suitability for freezing. Quart-size containers are perfect for single or double servings, while gallon-size containers are ideal for larger batches. Always leave some space in the container, as liquids expand when frozen. To minimize mystery bags in your freezer, label your containers with the recipe name, date, and reheating instructions. Now you're all set to fill your freezer with delicious, homemade soup!
| Characteristics | Values |
|---|---|
| Containers | Plastic containers, freezer bags, glass containers |
| Container type | Must be freezer-friendly, heavy-duty, and BPA-free |
| Container size | Quart-size for single or double servings; gallon-size for larger portions |
| Soup type | Broth-based soups freeze best; soups with noodles, rice, or dairy may become mushy or grainy |
| Cooling | Allow soup to fully cool before freezing; dunk pot in sink filled with ice water to speed up cooling |
| Labelling | Label containers with contents and date; label before filling to avoid mess |
| Headroom | Leave 0.5–1 inch of space at the top to allow for liquid expansion |
| Stacking | Stack bags no more than 4 high to avoid leaking |
| Thawing | Thaw in the fridge or microwave; place bag in a container to catch leaks |
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What You'll Learn
- It is safe to freeze soup in plastic containers, provided they are made from safe plastics
- Broth-based soups freeze well, while soups with starchy vegetables, noodles, and cream can be trickier
- Always leave some space in the container, as liquids expand when frozen
- Label containers with the contents and date
- To thaw, place the frozen bag inside another container and thaw in the fridge or microwave

It is safe to freeze soup in plastic containers, provided they are made from safe plastics
When choosing plastic containers for freezing soup, look for those that are specifically designed for freezing, often indicated by a snowflake icon or labelled as "freezer-safe". These containers are typically made from heavier-duty plastic that can withstand the expansion of liquids during freezing and prevent breakage. Reusable plastic containers, such as Tupperware, are a good option, and some are designed for freezing. It is also recommended to use containers that can be “burped” to release excess air.
To safely freeze soup in plastic containers, follow these steps:
- Allow the soup to cool: Do not place hot soup directly into the freezer, as it can cause food safety issues and affect the temperature of other frozen items. Let the soup cool completely by using an ice bath or dividing it into smaller containers to speed up the process.
- Choose the right containers: Select freezer-safe plastic containers made from safe plastics. Ensure they are heavy-duty and suitable for freezing.
- Label the containers: Before filling the containers, label them with the contents and date. This helps identify the soup and ensures you consume it within the recommended timeframe.
- Leave expansion space: Fill the containers, leaving about half an inch to an inch of space at the top. This allows for the expansion of liquids during freezing and prevents the container from breaking.
- Flatten and stack: If using freezer bags, flatten the bags after filling and stack them in the freezer to save space.
- Thaw properly: When ready to use, thaw the frozen soup overnight in the refrigerator or use a quick-thaw method in the microwave. Transfer the soup to a bowl before finishing microwaving.
By following these steps and using safe plastic containers, you can safely freeze and enjoy your favourite soups whenever you like without worrying about food safety or compromising the quality of your soup.
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Broth-based soups freeze well, while soups with starchy vegetables, noodles, and cream can be trickier
Freezing soup is a great way to preserve leftovers without sacrificing taste and consistency. Broth-based soups freeze well, while soups with starchy vegetables, noodles, and cream can be trickier to freeze and reheat.
Broth-based soups are a great option for freezing as they tend to maintain their texture and consistency when thawed. Pureed soups also freeze well. If you're looking to freeze a soup with a variety of ingredients, consider omitting certain components that don't freeze well. For example, you can freeze the soup base and then add starchy vegetables, noodles, or cream after reheating. This way, you can enjoy a variety of soups without worrying about texture changes.
When freezing broth-based soups, it's important to choose the right containers. Freezer-safe, airtight containers made from heavy-duty plastic or glass are ideal. Look for containers that are specifically designed for freezing, as regular containers may not withstand the cold temperatures. Make sure to leave enough expansion space to prevent cracking or breaking. Label your containers with the contents and date, so you know what you're defrosting and when it was frozen.
To freeze broth-based soups, allow the soup to cool completely before transferring it to your chosen containers. Leave some space at the top, as liquids expand when frozen. You can also freeze soups in freezer bags, which are a great space-saving option. Lay the bags flat in the freezer, stacking them no more than four high to avoid mess or leakage.
When it comes to thawing, place the frozen container or bag in the refrigerator overnight or during the day to defrost. For a quicker option, you can use the microwave, but be sure to transfer the soup to a microwave-safe bowl or container first. Remember, soups with starchy vegetables, noodles, or cream may require additional preparation, such as adding these ingredients after reheating to ensure the best texture and taste.
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Always leave some space in the container, as liquids expand when frozen
Liquids expand when frozen, so it's important to always leave some space in the container. If you're using freezer bags, place each one in a bowl or tall container and fold the edges over the rim. Then, ladle the cooled soup into the labelled containers, leaving 0.5 to 1 inch of headroom at the top. This will ensure that the bag doesn't break or leak as the liquid expands.
When using plastic freezer containers, look for ones that you can ""burp" to release excess air. You can also press the excess air out of freezer bags before sealing them. It's important to use good-quality freezer bags that are specifically designed for freezing. These bags are sturdier and made of thicker plastic than regular bags.
Glass containers, such as mason jars, can also be used for freezing soup, but it's important to leave enough expansion space to prevent the jar from breaking.
By leaving some space in the container, you can avoid potential messes and ensure that your soup stays safely frozen until you're ready to enjoy it.
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Label containers with the contents and date
It is essential to label containers with the contents and date when freezing soup. This will help you identify the soup and know when it was frozen. You can use a marker to write directly on the container or lid, or you can use printed or handwritten labels.
Labelling the contents will help you distinguish between similar-looking soups, such as pureed pumpkin and squash soup. It will also help you identify the type of soup if you are freezing soups with different ingredients, such as soups with and without beans.
Including the date on the label is important for food safety and freshness. Soup can be stored in the freezer for up to 2 to 3 months, so dating your containers will help you keep track of how long the soup has been frozen. This will help you avoid losing freshness or risking food safety issues.
In addition to labelling, it is important to choose the right containers for freezing soup. Freezer-safe containers should be used, and if using plastic, it should be heavy-duty to prevent breakage during expansion. Reusable plastic containers specifically designed for freezing, such as Tupperware with a snowflake icon, are ideal. Glass containers like mason jars can also be used, but it is crucial to leave expansion space to prevent breakage.
To optimise space, flat freezing is recommended. This involves freezing the soup in a thin layer, which takes up less space than odd-shaped containers. Flat freezing also has the added benefit of quicker thawing times. Good-quality freezer bags are suitable for this method, and it is important to look for bags specifically labelled for freezer use.
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To thaw, place the frozen bag inside another container and thaw in the fridge or microwave
When it's time to thaw your frozen soup, there are a few different approaches you can take. If you're planning to thaw your soup overnight or during the day, place the frozen bag inside another container and leave it to thaw in the fridge. This method helps to catch any potential leaks from the bag as the soup thaws and loses its shape. It's also a good idea to thaw soup in the fridge if you're not in a hurry since the food will generally defrost overnight or while you're at work.
For a quicker option, you can thaw your frozen soup in the microwave. Place the frozen bag on a dinner plate and microwave in short bursts until you can break the food apart or remove it from the bag. Then, transfer the food to a bowl or another container and finish thawing it in the microwave. It's important to note that you should not put a frozen bag of soup directly into the microwave and heat it for an extended period.
To avoid leaks and bursting bags, it's recommended to use good-quality freezer bags specifically designed for freezer use. These bags are sturdier and thicker than regular plastic bags. Additionally, quart-sized or gallon-sized bags are ideal for single or double servings, while larger bags can be challenging to thaw.
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Frequently asked questions
Yes, you can freeze soup in plastic containers. Make sure the containers are freezer-safe and made from safe plastics that do not contain polyvinyl chloride, polycarbonate, or polystyrene.
Broth-based soups freeze well. Soups with rice, beans, and meat can also be frozen. Soups containing starchy vegetables, noodles, and cream can become mushy once thawed, but you can still freeze them if the texture doesn't bother you.
Label the containers with the date and contents. Leave about an inch of space at the top of the container because liquids expand when frozen. Always let the soup cool before placing it in the freezer.
You can freeze soup in containers or bags. If using bags, lay them flat in the freezer. Bags are also useful for freezing soup in individual servings.
You can thaw frozen soup overnight in the refrigerator or in the microwave. If using the microwave, place the bag on a dinner plate and thaw in bursts until you can wiggle the soup out of the bag. Then, transfer it to a bowl and finish thawing.

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