July 1, 2022

How to vacuum seal a mason jar with boiling water

Vacuum sealing is one of the best ways to store food and keep it fresh. If you're wondering how to vacuum seal a mason jar, this method works well! All you need are some boiling water, a few jars and lids, and your food of choice. This method works for anything from raw meat to dried fruit—anything that could benefit from long-term preservation by being stored in an airtight environment.

Step 1: Remove the lid from your jar.

Before you begin, remove the lid from your jar. This is important; if the lid is still on and you start to boil water, it could explode or burn you and damage your jar! Make sure that you have a clean cloth and are holding it with a dry hand. If using an oven mitt, make sure that it’s also dry before removing the lid. A metal spoon can also be used if needed—just be very careful not to burn yourself!

Step 2: Fill the jar with boiling water.

Fill it no more than halfway, but fill it all the way, so that the water level is even with the shoulder of your mason jar. Make sure to use enough water so that you don't have any air pockets in your vacuum sealer bag.

Step 3: Place the food you want to store into the jar.

You can use any kind of food, but it's important that you make sure it doesn't have any added liquid or moisture in it. If your food has been soaked in water, let it drain completely before placing it in the mason jar.

Fill up your mason jar with boiling water until it reaches right below where your lid will be placed when you seal off the jar. Make sure there are no air bubbles trapped inside; this is an important step because those bubbles will prevent your vacuum seal from working properly!

Step 4: Replace the lid and tighten it as much as possible.

Now that the jar is sealed and hot, it's time to replace the lid. Take care to make sure that you don't lose any of the vacuum seal and that your lid is completely secure. It is important not to use a lid that isn't airtight because it won't be able to hold in all of your deliciousness. Additionally, don't use a lid made with materials like plastic or metal as they can melt during this process and ruin everything for you! The safest option is always glass because it has no risk of melting at such high temperatures (and we know how much damage melted plastic can do).

Step 5: Place the jar into a large pot of boiling water, up to its neck.

Now it is time to put your jar in the boiling water. You will want to make sure that all sides of the jar are covered by water, up to its neck. Be sure that the jar is sitting upright on a flat surface inside of your pot and that it does not touch any part of the pot or burners.

Step 6: Boil for ten minutes.

  • You owe it to yourself to boil for ten minutes.
  • If you're not sure about how long to boil, check out the USDA's food safety tips for boiling water.
  • If you have a timer on your microwave, use that. Otherwise, just keep an eye on the clock until you think it's been long enough—when in doubt, err on the side of caution.
  • Don't forget about your jar! It will be safe until it stops bubbling; once it does stop bubbling (usually after 7-10 minutes), remove your jar from the boiling water and allow it to cool naturally at room temperature before opening it up and inspecting its contents.

You can vacuum seal a mason jar using boiling water, and this is how you do it.

Although vacuum sealing a mason jar may seem like it would require some sort of fancy, expensive vacuum sealer or something, you can actually do it without any fancy equipment. In fact, all you need is boiling water and a mason jar. The process is pretty simple:

  • Fill your mason jar halfway with hot water and then put in the food that you want to preserve (e.g., berries). If there are air bubbles in the jar and they aren't being filled by liquid from the food floating on top, use a chopstick or something else thin and non-porous to push them out. Then place on top of lid securely, but don't screw it on too tightly yet!
  • Take off lid and place under running faucet for about 30 seconds until you feel resistance when trying to unscrew cap back off again; this means that pressure inside has built up enough that water won't leak out anymore without opening valve first (which would release pressure anyway). Once feeling resistance stops becoming noticeable again after unscrewing cap off completely this time around then screwing back down tightly before starting next steps below - otherwise risk losing all contents within due to leakages caused by improper sealing procedures such as failing not tighten enough initially."

In summary, you can vacuum seal a mason jar using boiling water. The process is very simple and straightforward, and the result is a jar that will keep your food fresh for years to come. Best of luck!

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