How to Vacuum Seal a Mason Jar: An Easy Guide

One effective way to make your food and other perishables last longer is to vacuum seal them in a Mason jar. By doing this, you can keep your food fresh for an extended period and avoid waste, saving you money.

This guide will demonstrate how to use a chamber sealer to vacuum seal a Mason jar. All you need is a chamber vacuum sealer and some small-sized Mason jars!

What Are Mason Jars?

Mason jars are a type of glass jar commonly used for home canning and preserving foods. There are various sizes, shapes, and styles available in which they come, along with lids that offer airtight sealing. Mason jars are an excellent option for storing food and other perishable items because they provide a safe and secure environment that helps them last longer.

How to Vacuum Seal a Mason Jar Using a Chamber Sealer

Ready to extend the shelf life of your home-canned goods? Here’s how to vacuum seal a Mason jar using a chamber sealer! Then, prepare an airtight and secure storage solution to keep your food safe.

The USV32 chamber vacuum sealer is excellent at vacuum-sealing Mason jars! Ensure that the glass pots can fit inside the vacuum chamber with their lids closed and are of a suitable size.

Start by placing the lid on the Mason jar and then screw the outer band on loosely. Then, put it in your chamber sealer and close the lid. Once that’s done, run your ‘auto vac and seal’ function to start the vacuum sealing process. When finished, remove the Mason jar from the chamber and tighten that outer band for an airtight seal!

Can I Use an Accessory Hose Instead of a Chamber Sealer?

Yes, you can also use an accessory hose to vacuum seal Mason jars. A good product is the FoodSaver Jar Sealer. This can be used with any Mason jar.

What Brand of Jars Do I Use

For this guide, we’re using Ball Mason Jars. They offer a range of sizes and styles to cater to your home canning requirements.

Kerr is another famous brand of Mason jars, so feel free to use those as well.

What Foods Can Safely Be Stored in Vacuum-Sealed Jars?

To correctly vacuum seal items for storage, it is recommended to use fruits, vegetables, and meats that will be stored in either the fridge or freezer. In addition, dry ingredients that have a long shelf life, including baking powder and soda, sugar, flour, cornstarch, graham cracker crumbs, pasta, beans, nuts, coffee grounds, and cereal, can be stored in jars.

To store jams, jellies, and spreads for a long time, seal them in jars and keep them in the pantry along with dry foods. This is especially useful for homemade batches of jam you plan to give out during the holidays, as they can be conveniently stored and retrieved as needed. And if you plan on reusing the jars as gifts, be sure to decorate them!

Items That Should Not Be Vacuum-Sealed.

It is not recommended to use a vacuum sealer or an oxygen absorber for preserving sugar or brown sugar. This is because it can cause the sugar to become a solid block that is difficult to remove from the jar.

It is unsafe to vacuum seal fresh or cooked foods, such as sliced peaches or homemade soup, in a canning jar unless you refrigerate them for a few days before eating.

How Long Do Vacuum Sealed Mason Jars Last?

Food stored in a vacuum-sealed jar can last for 2-3 years when frozen, while other freezing methods can only preserve it for 6-12 months.

Vacuum-sealed food stored in a refrigerator can last for 1-2 weeks, while the food stored without vacuum sealing will only last for 1-3 days.

Do Mason jars create an airtight seal?

Yes, Mason jars can create an airtight seal. This is why they are ideal for vacuum sealing foods and other items.

To ensure that a Mason jar is tightly sealed, use a lid with a gasket or soft material that will apply pressure to the glass jar when you twist it closed. This can be achieved using a regular top and band or a plastic lid with a silicone gasket.

Where To Buy The Best Vacuum Sealing Jars

You can buy vacuum sealing jars and supplies in many places. For example, you can find vacuum sealing products in different sizes at home supply stores, big box retailers like Walmart and Target, and online marketplaces like Amazon.

What Are Some Of The Best Vacuum Seal Mason Jar Attachments?

The FoodSaver Wide-Mouth Jar Sealer is one of the market’s most popular vacuum seal jar attachments. The product includes a Mason jar attachment with a wide mouth compatible with both regular and wide-mouth Mason jars, making it suitable for any size or type of Mason jar. It also includes an accessory hose.

This is a great Mason jar vacuum sealer kit for busy households who want to quickly and easily preserve food. Extending the shelf life of your food is a great way to save money and ensure it stays fresh for a more extended period.


Vacuum sealing a Mason jar is an easy way to extend the shelf life of perishable items like food or herbs/spices while saving money by preventing spoilage from leakage or contamination from outside sources. By following these simple steps outlined above, you can create an airtight environment for whatever item you store in them! With just a few minutes worth of work plus a reliable vacuum sealer machine, anyone can quickly learn how to properly prepare their Mason jars for long-term storage – giving them peace of mind knowing their goods are safe from harm until they are ready to be used again!

author avatar
Hey there, since 2016, my mission has been to provide you with the information and guides you need to make food dehydrating simple and fun. Whether you're a newbie or a seasoned pro, my site offers helpful guides, reviews, and recipes to enhance your dehydrating experience. I take pride in only recommending products I believe in, ensuring my readers' trust. As an affiliate of various programs, including Amazon Associates, your support helps me continue providing quality content. Thanks for stopping by, and happy dehydrating!

Leave a Reply

Your email address will not be published. Required fields are marked *