UNERVER Mason Jar Vacuum Sealer Kit, Electric Airtight Food Saver for Wide & Regular Mouth Jars, Easy to Use Vacuum Sealer for Meal Prep, Pantry Storage & Keeping Food Fresh Longer

I have been using this mason jar vacuum sealer for several weeks now, and I have to say, it has completely transformed how I store my pantry staples and dehydrated foods. I’ve used it about 50 times on different jars with a variety of contents: everything from beans, rice, oats, and flour to dried herbs, nuts, and dehydrated fruits. Not a single jar has come unsealed. I’ve been watching them closely, and the vacuum holds perfectly every time. One of the things I love most about this sealer is that it works on just the lid. No rings are required, which makes the process much cleaner and simpler. The lids seal tightly on their own, and it’s easy to see when the vacuum has done its job. For those who want extra peace of mind, you can absolutely use the rings, but in my experience, they’re completely optional. The vacuum itself is strong and consistent, and it’s clear that this product was designed with real-world use in mind. The build quality is excellent, and the design is very intuitive. It’s compact, easy to handle, and doesn’t require bulky machinery like a traditional vacuum sealer with tubes and a mason jar attachment. I’ve used it on half-pint, pint, and quart jars, and it works flawlessly every time. I've done both wide and small mouth jars as well as experimenting with sauce jars and other solid lid jars. It’s perfect for anyone who wants to extend the shelf life of dry goods without investing in a large vacuum sealing machine. Important warning about canning thats concerning in these reviews: This product is not intended for canning food to make it shelf-stable. It is only for dry goods and dehydrated foods. If your goal is long-term preservation of perishable foods like vegetables, fruits, sauces, jams, or meats, you still need to use proper water bath or pressure canning techniques: Water bath canning is ideal for high-acid foods like jams, jellies, pickles, tomatoes, and fruit preserves. The jars are boiled in water for a specific amount of time to kill bacteria, yeasts, and molds. This process ensures the food is safe to store at room temperature for long periods. Pressure canning is required for low-acid foods like cooked beans, meats, vegetables, and soups. Because these foods can harbor harmful bacteria like Clostridium botulinum, boiling water alone isn’t sufficient. A pressure canner reaches higher temperatures that destroy these bacteria, making the food safe for long-term shelf storage. Using this mason jar vacuum sealer on its own will not make perishable foods safe for room-temperature storage. However, it is perfect for keeping dry goods, dehydrated snacks, grains, beans, nuts, flour, herbs, and spices fresh and protected from air and moisture. It’s also great for organization. Your pantry looks neat, and the jars stay sealed tightly without fuss. Overall, I couldn’t be happier with this purchase. It’s reliable, easy to use, and has quickly become an essential part of my kitchen. If you want a simple, effective way to extend the life of your dry goods, this vacuum sealer is absolutely worth it. TL;DR: I’ve used this mason jar vacuum sealer about 50 times on a wide variety of jars, and none have come unsealed. Works with or without rings, easy to use, and perfect for dry goods or dehydrated foods. Not for canning perishable foods. Use water bath canning for high-acid foods and pressure canning for low-acid foods to ensure safety. Highly recommended for keeping pantry staples fresh.

This product is so straight forward and easy to use. Came charged up and ready to seal. I’ve used it for a couple days and haven’t had to recharge. Already recommended to a friend of mine. Quick, effective and love the green color!

I’ve used this vacuum sealer for more than a year now and it does such a great job keeping my blueberries fresh! I can put them in a quart canning jar and they can last up to a month or more as we consume. Strawberries don’t do as well or raspberries— but probably extends by a couple of days. The charge last a very long time. I think I’ve only charged it up twice and each time it still had about 30%. I would highly recommend even it only used for blueberries, as they cost $6-8 these days! The photo of blueberries - they are two weeks old so far.

I got this for cheap after viewing the $60 one on my feeds. This works great! I use the wide mouth mason jars and now no longer have moths in my cereal/flour/breadcrumb cabinets. I did a ton of jars, I'd say 35, before it even needed charging. You vacuum seal for about 50 seconds each time, it doesn't shut off automatically so be careful. I did try it on some tiny mason jars, like sample jelly ones, and it didn't seal with the smaller part. That's okay, it might have been too small or warped edges (old jars.) I love seeing the product inside the jars and they stack great in my cabinet. It comes with a charger (no wall socket) and a little jar opener, which we use, although you can pry it off with a thumb if necessary. No more stale cereal too. Haven't tried it with berries or veggies in the fridge yet. I don't usually use the rings from the mason jars unless it's something I don't get into often. Edit: I had to take off a star because it stopped working, only the timer works. But it more than paid for itself in the two months I had it.

I really like the ease of charging it the numbers were clear when it was 100 % charged. The charge lasted thru all the jars I wanted to seal. the directions were simple enough to follow and I did a great job when it came to vacuum sealing the small or the large jar! It made a crisp sound when it sealed. I purchased one for my sister!!!

I have had this vacuum sealer for about 4 months and used it about 50 times. It seals a jar tight and I have never had one break vacuum even reusing the lids it came with. Battery has been surprisingly great too.

I have been consistently impressed. Works as advertised, easy to use, and gets the job done. Our berries and perishables last so much longer now. Highly recommend

Works okay but occasionally the vacuum leaks off after awhile

I’m really happy with this mason jar vacuum sealer. It’s easy to use and seals jars quickly and effectively. My food stays fresher much longer, which helps reduce waste. The electric feature makes it simple and convenient compared to manual sealers.

Me funcionó muy bien, y después de bastante uso sigue funcionando.

Good pricing for such a useful jar sealer, works very well.

Very rare for me to write a review, but I have to this time. I bought this in nov. 2024 - and NEVER used it until 3 weeks ago. I vacuumed sealed about 36 wide mouth mason jars with an average 1/4" aiir gap and it seals it quickly <3sec and strongly too. But why I'm writing this is more about the fact that I got it ~1.5yrs ago, chharged iit never used it, left it in my car the entire time (through summer and winter) and to my surprise when I went to use it the charge was still at 100% - I was gobsmacked! So far I'm happy with this purchase. I also did a handle for regular mouth mason jars and it perfoorms just as well. Zero issues. and should I lose it (I'm taking it on vaca with me where I'll make and store yogurt) I will be looking to buy this again.

⭐️⭐️⭐️⭐️ - Efficace, mais avec quelques nuances à connaître J’ai acheté cette machine à emballer sous vide électrique pour mes bocaux Mason Jar, et elle est globalement satisfaisante ! Voici mon retour détaillé : Facilité d’utilisation : Super intuitive, elle fonctionne parfaitement sur les bocaux à ouverture régulière et à grande ouverture. Appuyez sur le bouton, et le vide est fait en quelques secondes. Compatibilité limitée : Attention, elle ne fonctionne pas sur les bocaux Mason Jar de 18 mm (entre les deux tailles standard), ni sur certains bocaux comme les pots de confiture à forme ronde. D’après mon analyse, leur rebord ne permet pas au produit de bien "s’asseoir" pour créer un vide efficace. Couleur conforme à la description : Bien que la couleur diffère légèrement des photos, après vérification, c'est conforme à la description. Je le prends donc comme une erreur de ma part. Autres observations importantes : Charge et autonomie : Le produit doit être chargé pleinement avant la première utilisation. Cependant, il est difficile de savoir combien de temps cela prend. Heureusement, chaque cycle consomme en moyenne seulement 5 % de la batterie, et l’appareil indique le pourcentage de charge restant. Le bouton "Stop" permet d’interrompre à tout moment, et l’appareil s’arrête automatiquement après 120 secondes. Rapidité et précision : J’ai adoré la rapidité et la précision de l’appareil. Il affiche même le décompte en secondes pendant l’utilisation. Durée de vie : La durée de vie semble prometteuse, mais je n'ai pas encore assez de recul pour confirmer sa robustesse sur le long terme. Conservation des aliments : Une vidéo de démonstration montre la conservation de sauce à spaghetti sur une tablette. En tant qu’ancienne professionnelle de la restauration, je ne recommande pas d’utiliser cet appareil pour ce type d’aliments, car cela ne respecte pas les normes de sécurité alimentaire pour des produits périssables non réfrigérés. Malgré ces nuances, je suis vraiment satisfaite de ce produit. Son efficacité et son utilité m’ont impressionnée, et je l’ai utilisé dès sa réception. Je recommande ce produit pour les amateurs de conservation maison avec quelques précautions en tête !