FoodSaver Plastic Jar Sealer for Vacuum Sealer Food Storage with Accessory Hose for Regular and Wide Mouth Mason Jars, White 9.00 x 6.00 x 4.90 inches

HERE IS THE SECRET! 99+% sealing success. Step-by-step. Easiest with two people but can be done with one. This is a GREAT product, IF you know how to use it! Tiny mistakes can make this product not work at all.Canning jars are designed to be heat sealed, and the sealing compound (upper red ring inside lid) softens at boiling point – SO, it is difficult to get a good seal without using heat (only vacuum) unless you know the secrets:WHAT TO KNOW:1. The vacuum jar sealer works by creating a vacuum between the jar sealer’s inner softer plastic ring and the lowest outer glass bead/ring below the threads of the glass jar. That strong and airtight connection is not always easy to achieve. SO: Moistening both the upper side of the outer glass ring on the jar, as well as the inner soft plastic (blue on mine) of the jar sealer will help to get a better seal, if needed.2. Though this is an accessory attachment, the overall vacuum that is sensed by the vacuum sealing machine is affected. If there are any abnormalities in your main machine, the attachment will not work. SO: Make sure that the inner seals/gaskets of your main sealer are soft, pliable and completely free of any moisture, debris, dried food or creases. These are the gaskets where you normally seal bags. If they aren’t airtight, your jar sealing will not work correctly. Clean them completely off and dry them. Replace gaskets if necessary. They MUST be clean and creating a good strong seal inside the machine.3. The lid adheres to the top of the glass jar only at the moment right when the vacuum process stops. As long as sufficient air has been evacuated from the glass jar, then the air rushing back in is what creates the seal. SO: The cancel button or simply releasing the vacuum motor on the sealing machine both DO NOT create large/fast enough volume of air to make a seal. Actually yanking the plastic tube connector (not the tube itself) out of the top of the jar sealer is the only way to get enough of a rush of air to properly seal. With practice you can do this as one person (one palm holds down the lid of the sealer activating the pump motor, and the thumb and first fingers of that same hand keep vertical downward pressure on the jar sealer), but it is easier and faster with two.STEP BY STEP:a) Remove the metal lid-retaining ring and the lid from jar. Set the metal retaining ring aside. You do not use the ring during vacuum sealing (only afterwards).b) Using a very clean partially damp sponge*, moisten the upper part of the lower outer glass ring (below where the bottom of the metal ring is), all the way around the jar. IMPORTANT! Place the jar directly next to the sealing machine (one hand must hold both when you seal)c) Using the same sponge, moisten all the way around the inside of the softer plastic ring on the inside of the sealer (this will contact the glass ring you just moistened)*d) lightly moisten just the red/sealing outer band on the bottom of the lid*. Tap on its side to remove any excesse) Place lid on jar, then sealer over everything, with hose firmly attached.f) While keeping strong downward vertical pressure with one hand, use the other hand’s butt of it’s palm to press down on the sealing machine to activate the motor.g) While motor is running, position the motor-actuating hand so that it begins to grab around the top of the sealer and pulls down using thumb and first fingers. You have to do this with one hand, because the other hand (or a helper) will be needed to pull out the hose connector very quickly.h) For a quart glass jar, the motor must run no less than sixty seconds (YMMV)i) After enough time has passed to have evacuated sufficient air from the glass jar. Keep your left hand (if right handed) with simultaneous downward pressure on the sealing machine/motor and downward pressure holding down the jar sealer., with thumb and fingers wrapped around as much as possible to create even downward pressure around the jar. Release your right hand with the motor still runningj) Use your right/dominant hand to firmly grasp the tube connector at the top of the jar sealer. While the motor is running, very quickly yank the tube connector straight up and out of the sealer.k) You can then relax all your muscles. Wiggle up the jar sealer, and if you did everything right, the jar will be sealed, the button on top will be down, and you can screw on the ring tightly to maintain the seal.TIPS:i) *Once you have your technique & confidence down (and your gaskets are clean), you may not need any use of moisture, or maybe only every several jars.ii) If you try a couple of times and you cannot seal, try the SAME lid with a DIFFERENT jar. Small imperfections in the manufacture of the jar (the seam that runs up the sides especially) can make it so that some jars simply cannot be sealed.iii) Heating up your lids in boiling water (remove, then tap to shake off water right before sealing) can help to create a better seal*.iv) If your glass jar does not have the full outer/lower ring below where the end of the metal ring stops, then it cannot use this jar sealer.v) Lid outer sealing areas must have full covering of the red sealing material. Nicks and scratches will not work. Some people swear by new lids, other by pre-dishwasher “relaxed fit” lids – doesn’t seem to matter to my technique.

Jar sealer. The lid sealers work great. However the tube attachment does not work with the Food saver. Fortunately I have a tube attachment that does work.

Useful FoodSaver Tool. Great for temporarily sealing jars for dry goods, grains, and seasonings. Easy to use. Push onto jar with canning lid, push vacuum hose into receptacle, and press seal. Worked great with my FoodSaver but you have to be careful removing the adapter or it can break the seal.

LOVE IT. This is my second go-round with this item. Lost the first set – but THIS TIME I GOT IT TO WORK! So, I don’t know if the first time was the same item. I’m ordering a second set for my second home. I LOVE THIS SET!!! GET IT!! I love using mason jars to store my stuff. GLASS is so much better than plastics!!! LOVE LOVE LOVE IT!!! THANK YOU!!! So easy to use!!! DO IT!!!

Good product. Great for my dry goods. Struggled to get a good seal, once I learned you have to apply some pressure to it to make a good seal it was smooth sailing. If the instructions would’ve been better it would’ve been 5 stars. Other that that the material and construction are very sturdy and i have no complaints on that.

Great gadget. Ok I’ve had a vacuum sealer for years. One things I enjoyed doing was sealing my dry goods in wide mouth mason jars. My new unit does not have the sealer just for the jars. So I purchased the kit off Amazon that came with the small and wide mouth lids. I have sugar, flour, oatmeal, cornmeal, pasta, powered sugar, rice, oils, cereal in different size mason jars. I have powered brown sugar 7 years old and it’s not a brick. Well worth the money.

Essential Item. I love these things for sealing mason jars. It works good with a food saver but to save time and to get a stronger seal I took an old vacuum pump and hooked patched it up to these lids and wow does it seal them fast and seal them strongly. Be sure to keep the round gasket on the inside clean and i’ll even wipe it occasionally with a damp towel to get an even better seal. I buy nuts in bulk and vac seal them in mason jars and I dry a lot of gourmet wild mushrooms and seal them in jars too and it all stays super fresh for a long time with this method.

Works as described. After buying and returning a stand alone sealer, I purchased this. This works perfect but 1 thing that could be an issue for others is the hose provided did not work with my Food Saver. Thankfully I still had the hose that actually came with my Food Saver so I was able to switch it and it works perfect.