“Our all-around best chamber vacuum sealer can seal up to two half-gallon mason jars simultaneously!”

How To Vacuum Seal Mason Jars - Vac100 - Latest Video

Today, we go over “How to Vacuum Seal Mason Jars in the Vac100 – chamber vacuum sealer.” 

Today we will discuss how to vacuum seal Mason jars using the JVR Vac100 Chamber Vacuum Sealer. In addition to providing endless possibilities such as vacuum sealing meat to avoid freezer burn, providing a delicious sous vide experience right from your own home, or sealing cut bags to store your dried fruit, the Vac100 Chamber Vacuum Sealer it is also well equipped to vacuum seal Mason jars!

JVR Vac100 - Chamber Vacuum Sealer

Consistent adjustments have been made to the Vac100 Chamber Vacuum Sealer to ensure top notch quality and to keep our product standing apart from vacuum sealers provided by our competitors. Our all-around best chamber vacuum sealer can seal up to two half-gallon mason jars simultaneously!

The following dives into explaining what can be vacuum sealed using this process as well as a detailed account of how to carry out this process simply from your own countertop.

While the vacuum sealing process using retort pouches offers a wide variety of options, the opportunity to seal Mason jars provides a new category to store more delicate foods for meal prep. These include dry, shelf-stable foods such as grains, dried fruits and baking products. This process is NOT meant to replace the common canning practice that seals non-shelf stable products such as salsas, liquids, and more.

Mason Jars Isolated - Vacuum Seal Mason Jars Vac110

Note: Keep in mind this process does not replace the standard sealing process using water baths.

Inside the chamber of the unit, you are able to fit 4 – 8 ounce (236ml) regular mouth Ball mason jars upright (as pictured). Sealing multiple mason jars at one time outpaces all external edge, suction vacuum sealers in the market today! Needing more space for those larger mason jars? No problem! Though this may not be a big vacuum sealer, there are other options like the external chamber or our JVR Vac110.

How To Program the Vac100
JVR Vac100 - Chamber Vacuum Sealer
Vac100 Mason Jars

If you require space to seal 16 oz – 64 oz Mason jars, then we carry just the product for you! The Vac100 Chamber Accessory (3-gallon) seals 1-2 Mason jars up to 64 oz (½ gallon) simultaneously in addition to performing functions such as expedited brining, marinating, and more!

Vac100 Chamber Accessory

Inside the 3-gallon chamber accessory, you are able to fit 2 – 64 ounce (1/2 gallon) wide-mouth Ball mason jars upright. Additionally, you can fit up to 4 – 32 ounce (946 ml) regular mouth Ball mason jars upright in the external chamber accessory. Using the chamber accessory, our customers are able to vacuum seal the largest mason jar in any chamber vacuum sealer in this price range! Commercial capability is unlocked with this modern vacuum packaging unit. Click here to buy the chamber accessory today!

Vac100 and 3 Gallon Chamber Accessory
Vac100 Chamber Accessory

Overview of Vac100 Chamber Vacuum Sealer Control Panel

Power: NOTE: This button only turns the display on and off, it does not disconnect the power supply. Always unplug the machine when disconnecting power is necessary.

Stop: immediately stops the cycle and vents the lid or exits after making a settings adjustment.

Settings: for changing program number or making adjustments to the vacuum, seal, and cool times.

Increase: Used for making setting adjustments.

Decrease: used for making setting adjustments and perform SKIP function when the machine is cycling.

Pump: Turns on the vacuum pump. Used for evacuating air from accessories.

Vac100 Control Board Buttons

Step 1: Check that the unit is plugged in.

Step 2: Check that the rocker switch on back of machine is switched to ON.

Step 3: Select Power on the main display.

Step 4: Select Settings. Select an option that is not already dedicated to a specific function (i.e. P3). The Vac100 is preset so that P0 and P1 are already dedicated (P0 for light vacuum sealing on chamber vacuum pouches; P1 for full vacuum sealing on chamber vacuum pouches).

Step 5: Select Settings. Set vacuum cycle time (use increase or decrease buttons). We recommend 50 sec in order to achieve 99% of air removed.

Step 6: Select Settings. Set sealing time to 0.0 sec.

Step 7: Select Settings. Set cooling cycle time to 0.0 sec.


The recess of the chamber inside the Vac100 is slightly uneven so some factors should be considered for effectiveness of the seal depending on how many jars are being sealed simultaneously.

Step 1: Set a mouth lid evenly and firmly over the mouth of the selected quantity of Mason jars.

Step 2: Screw the band lid on by ONE thread of each jar in order to keep the mouth lid in place. CAUTION: If the band is too tight, then this could cause a failure and even an implosion in some cases. Please do not overtighten the lid.

Step 3: Place jar/jars upright in the center of the chamber.

Vac100 Mason Jars Placement

Easy! Close lid of the chamber and the process will begin automatically. The hinging side of the lid engages with the cycle start switch which automatically engages the vacuum cycle.

Following sealing, a dimple should form on the top of the mouth lid. This shows the process has created an airtight seal. You can further confirm a fully sealed mouth lid by attempting to lift lid or tip the can upside down.

If no dimple forms, then repeat the process after confirming the mouth lid is on evenly over the mouth of the jar. Please bear in mind that the mouth of the mason jar does need to be free of dust and debris, If the lid has been used before, the lid is most likely distorted from any previous vacuum cycle and this is why we suggest replacing them.

There you have it – yet another use the Vac100 Chamber Vacuum Sealer can provide to make life a little simpler and more efficient in just a couple easy steps!

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