How to vacuum seal mason jars

How To Vacuum Seal Mason Jars

If you’re searching and finding ways to extend the shelf life of your food, a vacuum sealer is a great investment. We’ll show you how to use a vacuum sealer with Mason jars. If you’re like me, you have a ton of mason jars lying around your house. Mason jars are perfect for preserving food because they are airtight and watertight. 

But, if you’re not using them correctly, they can easily become breeding grounds for bacteria. In this blog post, I’ll teach you how to vacuum seal your mason jars to keep your food fresh and bacteria-free. Stay tuned!

Let’s get started!

How to vacuum seal mason jars

Mason jars are a great way to store food, but sometimes you want to vacuum seal them to keep the food fresh for longer. 

Here’s how to do it!

Method 1

  1. First, make sure your jar is clean and dry. 
  2. Next, put the Mason jar ring on top of the jar and screw it down tight. Then, put the vacuum bag over the Mason jar and attach the suction hose. 
  3. Finally, turn on the vacuum cleaner and let it run for 10-15 seconds. The Mason jar will be sealed and ready to store!

Method 2

If you’re searching and finding a way to preserve your food using vacuum-sealing jars are a great option. 

Here’s how to do it: 

  1. Fill the jar with the desired food item. 
  2. Place the lid tightly on the glass jars. 
  3. Screw on the ring until it is tight.
  4. Put the jar in the jar sealer attachment and seal according to manufacturer instructions.”

Once the jar is sealed, it will keep your food fresh for a longer period of time!

Method 3

Here’s how to vacuum seal mason jars:  

  1. First, make sure you have a jar lifter, an airtight container, and a jar sealer. The jar lifter will help you lift the hot mason jars out of the water bath without burning your hands. An airtight container is necessary to hold the evacuated air while you seal the jars. 
  2. A vacuum lid sealer creates a strong vacuum that seals the lid onto the jar. If you don’t have a mason jar vacuum sealer attachment, you can use a straw to suck out the air from inside the jar. Simply put one end of the straw into the jar and put your mouth on the other end and suck until all of the air is removed.  
  3. Once you have everything set up, fill your mason jars with food and place them in the water bath. Make sure that there is at least 1 inch of water above the top of the lids. Bring the water to a boil, and then reduce it to medium-high heat. Wait for the pressure cooker or canner gauge to reach 10 pounds per square inch (psi) before placing the weight on top. 
  4. The Process is for 25 minutes if using quart-size jars or 30 minutes if using pint-size jars. 
  5. Remove from heat and allow the pressure cooker or canner to cool down completely before removing the weight. Once cooled, remove the lid from the pressure cooker or canner and use the jar lifter to move the jars from the pot. Carefully seal each jar with a fastening earring band while they are still hot.
  6. This will always prevent these ones from opening during storage. You have the facility of using a cold water bath if you have enough jars or tight lids. 
  7. Do not fill more than halfway up on the jars, and an average of 1inch above the lid should be the lowest point of the water level -: 
  8. That’s it! You’ve now learned how to vacuum seal mason jars like a pro! Not only this method would save you money by allowing you.

It is all about Vacuum Sealing

You’ve probably seen those vacuum-sealed bags of food at the grocery store and thought to yourself, “Wow, that looks like it would keep my food fresh for a long time.” And you’d be right! Vacuum sealing is an effective way to preserve food and prevent spoilage.

But what exactly is vacuum sealing, and how does it work?

  • Vacuum sealing is a method of food storage in which air is removed from a bag or container before sealing it shut. This process eliminates not only air but also moisture and bacteria, which are all key factors in the spoilage of food. By removing these elements, vacuum-sealed food can last longer than food that is stored in a traditional manner.
  • Vacuum sealing can make food preservation easier. Vacuum sealed are methods that use suction and remove air before they are sealed. As air enters food, it breaks down quickly. Air and humid environments promote the growth of bacteria and viruses – certainly not the food you want! In the absence of air, food stays fresh longer.
  • Vacuum sealing can be beneficial for foods to keep in storage for a longer period of time, but fresh meals can be vacuum sealed for longer. But vacuum sealing does NOT substitute pressure canning and water bath canning.

Fun fact: People are discussing some ways to vacuum seal a mason jar with boiling water on Reddit

So how does one vacuum seal their food?

There are two main ways to do it: with a vacuum sealer or without.

  1. Vacuum sealers became devices that remove all extra air from a bag or container and then seal it shut. They might be bought online or at most home goods stores.
  2. The second way to vacuum seal food is to use a regular zipper-lock bag and a straw. Simply insert the straw into the corner of the bag and seal it shut, making sure that the straw is not touching any food. Then, put these bags into the freezer for 24 hours. This would really allow the air to escape and the bag to seal itself.

Whether you use a vacuum sealer or the straw method, vacuum sealing is a great way to keep your food fresh and prevent spoilage. So go ahead and give it a try!

Why my Mason jar wouldn’t seal?

There are many known reasons why your Mason jar would not have been sealed.

  1. If you didn’t screw the lid on tight enough, the seal might not be secure.
  2. If the rim of the jar is dirty, the seal would not go effectively.
  3. If you use a damaged or old lid, the seal may not hold. 
  4. Finally, if you processed the jars for too long or at too high of a temperature, the seals may have failed.

To vacuum seal a mason jar, you need to make sure the lid is tight, the rim is clean, and the jar is free of any damage. You also need to be careful not to process the jars for too long or at too high of a temperature. 

Vacuum-sealing mason jars have become a great and known way to extend the shelf life of your food. Vacuum-sealed mason jars can last for up to 12 months without changing any quality. This is a great way to preserve food for later consumption. 

What brand of jars do you use?

You’ll want to use jars that are specifically designed for vacuum sealing. Mason jars are a popular option, but there are other known brands available as well. Make it always dead sure to get the right size jar for your needs.

Once you have your jars, you’ll need to prepare them for sealing. Start by cleaning the jars thoroughly with warm water and soap. Rinse these well and let them dry completely. Next, place the lid on the jar, but don’t screw it on tight. 

Leave it just loose enough that you can still remove it easily. Now you’re ready to vacuum seal your jars. Place the jar in the vacuum sealing machine and follow your manufacturer’s given instructions. 

Once the jar is sealed, screw on its lid tightly and store in a cool, dark place. Vacuum-sealed jars can last for up to 18 months so that you can enjoy your food all year long.

Is it super easy to seal a mason jar with a Food saver?

Yes, it is very much too easy to seal your mason jar with a Food saver. Simply place the lid on the jar, and then place the Food saver over the top of the lid. Push down on the Food saver, and it will create a seal around the lid, keeping your food fresh.

If your mason jar has not been sealed the first time, here we brought a quick troubleshooting guide

  • Check the rim of your jar for any nicks or cracks. If you find any, smooth them out with a knife or sandpaper.
  • Wipe the rim of your jar and clean it with a damp cloth.
  • Make it always sure the lid is clean and free of any food residue.
  • Place the lid on your jar, then screw on the ring, and then tighten until just snug.
  • Place the jar in the Food saver with the lid side down.
  • Seal your jar as per your Food saver’s instructions.

If you follow these steps and your mason jar still doesn’t seal, there may be an issue with the jar itself. Try using a new jar and lid and repeating the process.

How do you vacuum seal a Mason jar manually?

  1. Take off the jar’s lid.
  2. Put your jar on the counter upside down.
  3. Place the bag over the jar’s opening.
  4. To fasten the bag around the jar’s neck, use a rubber band or another kind of seal.
  5. Utilizing a straw, draw the air from the bags.
  6. Put the jar’s lid on firmly.

Need help opening a sealed mason jar? We have got a detailed guide to it.


Food can be stored in Mason jars in a variety of ways and will stay fresh. You can further increase their shelf life by vacuum-sealing them. It’s a quick procedure that doesn’t call for any specialized tools and only takes a few minutes. So try this technique the next time you have some extra Mason jars laying around. Have your Mason jars ever been vacuum-sealed? What advice would you provide to others? Although buying mason jars in large quantities might be expensive, they are a common way to preserve food. Mason jar vacuum sealing is a fantastic technique to save money and preserve the quality of your food. It simply takes a few minutes and is simple to complete.


How do you air-seal mason jars?

Remove the lid from the jar. Place the jar upside down on the counter. Put the bag over the mouth of the jar. Use a rubber band or other type of seal to secure the bag around the neck of the jar. Suck the air out of the bag with a straw. Tighten the lid on the jar.

Tell me about the effectiveness of vacuum-sealing bags

Vacuum-sealing bags are effective in many ways. They keep food fresh for longer, prevent freezer burn, and help to preserve the flavor of food. Vacuum-sealed bags are a very old method but became known and great for storing clothes and other items that might be damaged by moisture.

Reputable companies can always identify what kind of material is used to seal vacuum bags. In addition, manufacturers can always disclose whether a vacuum-sealing bag is safe for boiling food. These are available on the label. If it’s not your preference to buy cheap vacuum sealing packs that can contaminate your dishes, you may consider purchasing one. Cooking food in vacuum-sealed containers is not an easy idea. It’s just important to prepare your food properly and keep it sealed.

Are vacuum sealers worth it?

  • Vacuum sealers are worth it if you are looking at an economy on your food budget.
  • Vacuum sealers can help you extend the shelf life of your food, so you can buy in bulk and save money.
  • To reduce food waste Vacuum sealers can help you, as you can seal and store leftovers for later.

If you are searching and finding a way to economize on your food budget, vacuum sealers are worth it.

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