Can Mason Jar Go In The Freezer?

Can Mason Jar Go In The Freezer?

Yes, you can freeze a Mason jar, but there are a few things to keep in mind. Make sure the jar is freezer-safe to prevent it from cracking. Leave some space at the top of the jar to allow for expansion as the contents freeze. Also, let the contents cool before putting the jar in the freezer to avoid thermal shock.

Mason jars are a fantastic choice for freezing food. Their popularity for food storage is well-deserved, thanks to their durability and versatility. However, the big question often revolves around whether these glass wonders can handle the chill of the freezer.

The short answer is yes, they can! Mason jars are designed to withstand freezing temperatures, making them a reliable option for stashing away your favorite soups, sauces, or whatever culinary masterpiece you’ve crafted. Just be sure to leave some headspace in the jar to allow for expansion as the contents freeze and to avoid any potential breakage. So, freeze away with confidence, and let those mason jars showcase their cool side!

Understanding Mason Jars

Mason jars, those iconic glass containers, have quite a storied past. They were first patented by John Landis Mason in 1858, revolutionizing food preservation. His design featured a threaded neck and a two-piece lid, allowing for an airtight seal.

Today, you’ll find a variety of mason jars on the market. The most common types are Ball, Kerr, and Bernardin jars. They come in different sizes, from the cute half-pint to the hefty half-gallon, catering to various storage needs. Some jars even boast unique shapes and styles, adding a touch of flair to your kitchen shelves.

Now, let’s talk utility. Mason jars are like the Swiss Army knives of the culinary world. They’re champs at canning, preserving everything from jams to pickles. When it comes to storing food, they’re the go-to for dry goods, liquids, and even leftovers. And yes, as we touched on earlier, they’re freezer-friendly too! So whether you’re pickling, canning, or just organizing your pantry, there’s a mason jar for the job.

Is Mason Jars Freezer Safe?

Yes, many mason jars are freezer-safe. However, it’s crucial to use jars specifically labeled as such. Not all mason jars are created equal, and using ones not designed for the freezer can lead to breakage due to the expansion of liquids as they freeze. Look for jars explicitly marked as freezer-safe to ensure a trouble-free freezing experience.

Freezing Food in Mason Jars

Freezing food in mason jars is like hitting the culinary jackpot for several reasons. First off, the glass construction of mason jars ensures that no harmful chemicals from plastic leach into your food, maintaining its purity and taste. Plus, they’re sturdy and resistant to odors, keeping your frozen treasures as fresh as the day you sealed them.

Now, let’s talk about the importance of proper storage. Maintaining the quality of your frozen goodies is a top priority, and mason jars are up to the task. Their airtight seals prevent air from creeping in and causing freezer burn, that pesky enemy of frozen deliciousness.

But, ah, the elephant in the room—glass breakage. While mason jars are freezer-safe, there’s a catch. Leaving adequate headspace is crucial to allow for the expansion of contents as they freeze. Ignoring this could lead to cracked jars, making your freezer a gladiator arena for shattered glass. So, measure that headspace wisely, and you’ll enjoy all the benefits of frozen mason jar delights without the drama!

Guidelines for Freezing in Mason Jars

Can Mason Jar Go In The Freezer

Freezing food in mason jars is a breeze if you follow these simple guidelines:

  1. Choose the Right Jars: Start with jars specifically labeled as freezer-safe. Regular canning jars might not be able to handle the extreme temperatures of the freezer.
  2. Clean and Dry Jars: Ensure your mason jars are clean and completely dry before filling them. Any moisture can lead to ice crystals forming inside, affecting the quality of your frozen food.
  3. Leave Headroom: This is crucial. Leave enough headspace at the top of the jar to allow for expansion as the contents freeze. Typically, 1 to 1.5 inches should be sufficient, but always check specific guidelines for the food you’re freezing.
  4. Use Wide-Mouth Jars: Opt for wide-mouth jars, especially if you’re freezing liquids. This allows for easier expansion and reduces the risk of breakage.
  5. Cool Foods Before Freezing: Don’t put hot foods directly into the freezer. Allow them to cool to room temperature before filling the jars. Rapid temperature changes can stress the glass.
  6. Label and Date: Always label your jars with the contents and the date of freezing. This helps you keep track of what’s in your freezer and ensures you use the oldest items first.
  7. Avoid Overfilling: Leave some space at the top even after the headspace to prevent spillage as the food expands.
  8. Use Plastic Lids: While metal lids can rust, plastic lids are a safer option for freezing. Make sure they are designed for freezer use.
  9. Thawing Safely: When it’s time to use your frozen goodies, transfer the jar to the refrigerator to thaw gradually. Avoid placing the frozen jar directly in warm water, as this can cause thermal shock and lead to breakage.
  10. Recommended Foods: Most foods can be frozen in mason jars, including soups, stews, sauces, fruits, and even some baked goods. However, avoid freezing foods with high water content, like cucumbers or watermelon, as they might become mushy upon thawing.

By following these steps, you’ll harness the full freezing potential of your mason jars while keeping your culinary creations intact and delicious.

Precautions and Alternatives

When it comes to freezing food in jars, ensure they are explicitly labeled as freezer-safe. Using regular jars can lead to unwanted breakages, and trust me, you don’t want a frosty mess in your freezer.

Now, if freezer-safe mason jars aren’t in your arsenal, fear not! There are other warriors in the freezing game:

  1. Plastic Containers: Opt for containers specifically designed for the freezer. These are built to withstand the chill without cracking. Just make sure they’re airtight to keep your food at its best.
  2. Freezer Bags: A classic choice for space efficiency. Squeeze out excess air, seal them tight, and you’re good to go. They’re flexible, stackable, and the MVPs of freezer organization.
  3. Vacuum Sealing: Invest in a vacuum sealer for the ultimate in freezer freshness. Removing the air helps prevent freezer burn and keeps your food in top-notch condition.
  4. Aluminum Foil Pans: Great for casseroles and larger dishes. They’re sturdy, stackable, and you can toss them after use—less cleanup, more convenience.

Remember, the key is to choose containers designed to handle the cold. So, whether it’s mason jars, plastic, or foil, your frozen delights will thank you for the proper protection!

Key Takeaways: Can Mason Jar Go in Freezer?

  • Yes, Mason jars can go in the freezer, but with certain precautions.
  • Ensure that the jar is freezer-safe and made of tempered glass to withstand extreme temperature changes.
  • Leave enough headspace at the top of the jar to allow for expansion as the contents freeze.
  • Avoid filling the jar with hot contents, instead, let it cool to room temperature before freezing, this will prevent the glass from cracking or breaking.
  • Label the jar with the date and contents to keep track of what you’ve frozen and when.
  • Thaw the Mason jar in the fridge to prevent sudden temperature changes that can cause the glass to shatter.
  • Never place a Mason jar directly on a hot surface or in boiling water as it can cause the jar to crack or break.
  • Lastly, always check for cracks or chips in the jar before freezing, as they can weaken the glass and cause it to break.

Freezing in Mason jars is a convenient and eco-friendly way to store food, but it requires some common sense and careful handling to ensure the jars are not damaged. With these tips, you can safely freeze your favorite foods in Mason jars and enjoy them later without any worries.


In today’s world, mason jars have become an essential part of our daily lives. From storing food to using them as a decoration pieces, mason jars have proven to be quite versatile. However, the question that arises is whether mason jars can be put in the freezer or not. After thorough research and study, it has been found that mason jars can indeed go in the freezer, but with certain precautions.

It is essential to ensure that the mason jars used for freezing are of high quality and are labeled as freezer-safe. It is also important to leave enough headspace in the jar while freezing to allow for expansion. Furthermore, it is recommended to avoid sudden temperature changes, such as taking the jar from the freezer and placing it in boiling water immediately. By taking these precautions, mason jars can be used for freezing without any risk of cracking or breaking, making them a convenient and eco-friendly option for storage. If used correctly, mason jars can be a great addition to your freezer storage options.

FAQs about putting Mason jars in the freezer:

  1. Can Mason jars go in the freezer?
    • Yes, Mason jars can be frozen, but it’s important to use jars specifically designed for freezing to prevent breakage.
  2. What type of Mason jars are freezer-safe?
    • Look for jars labeled as freezer-safe or wide-mouth jars designed for canning and freezing.
  3. How should I prepare Mason jars for the freezer?
    • Leave enough headspace to allow for food expansion, and ensure the contents are cool before freezing to prevent thermal shock.
  4. Can I freeze liquids in Mason jars?
    • Yes, but leave space at the top to accommodate expansion, and avoid filling the jar to the brim to prevent breakage.
  5. Are there any precautions when using Mason jars in the freezer?
    • To avoid breakage, use straight-sided jars, leave space for expansion, and gradually cool or thaw jars to prevent thermal shock.

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