







🥫 Seal in Freshness, Seal Out FOMO!
The UNERVER M11 Electric Mason Jar Vacuum Sealer Kit is a cordless, rechargeable vacuum sealer designed for wide and regular mason jar lids. With a powerful 5-watt motor and up to 5 hours of battery life, it automatically creates airtight seals to preserve dry goods and dehydrated foods, reducing waste and enhancing pantry organization. Compact and easy to use, it’s perfect for busy professionals seeking efficient food storage without bulky equipment. Note: Not suitable for canning perishable foods.















| ASIN | B0CHMRRSXS |
| Best Sellers Rank | #3,428 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #27 in Canning Products #877 in Kitchen Storage & Organization |
| Brand Name | UNERVER |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (8,345) |
| Item Dimensions L x W x H | 4.05"L x 4.05"W x 3.73"H |
| Item Weight | 0.55 Kilograms |
| Manufacturer | UNERVER |
| Material | ABS |
| Model Number | M11 |
| Operation Mode | Automatic |
| Part Number | M11 |
| Power Source | Battery Powered |
| UPC | 717023330228 |
| Voltage | 5 Volts |
| Warranty Description | 2-year service assurance |
| Wattage | 5 watts |
S**E
Detailed Review!! 5/5 Stars
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.
D**J
Great Money saving tool!
Works great! Love the ease of use and extention of life it gives my vegetables in the refrigerator. The added shelf life of dry goods is a money saver as well.
A**R
Great kitchen item
This works great. Easy to use. Holds a charge for a long time even when not in use. A great kitchen item.
W**N
Works great and no more bugs or stale food!
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.
H**Y
Great vacuum sealer
Fantastic jar sealers. I bought two and gave one as a gift. Perfect for those who like to do canning. Definitely creates good suction and works as advertised.
B**E
A kitchen must have
I purchased this to help keep nuts fresh. They would always get stale before I could eat a full bag. This worked perfectly for this purpose. Over the last year I have gradually expanded my uses. This makes storing dry goods and produce so easy and helps extend their shelf life. It works terrific for keeping salads fresh. It’s perfect for storing grapes. It helps store dry goods in the pantry and fruits & veggies in the fridge. I use the wide mouth jars so I removed the standard sized attachment. I don’t know the quality of the provided lids as I use the ones that come with the mason jars (purchased separately). You have to use the included can opener to break the seal and it will create a small dent in the lids. To avoid causing that damage and to extend the life of the manufacturer’s lid I place one of the lids included with the sealer on top of my lid. Then use the opener to break the seal. This method stops the opener from denting my lid. I am really pleased with my purchase and wish I had discovered it sooner.
T**Z
Good Product
I love this! Unfortunately, I got it wet inside and it stopped working. Also I saw some people give bad reviews because they said it stopped sealing. Here is a tip: Once you put the sealer on, continue to twist it to make sure the lid is seated correctly in the sealer, then turn on the sealer. Took me a few times to figure it out.
D**Y
seals well.
I've had this for over a month now and have used it pretty much every day. The key is to put jars and the device in an easily accessible place. Much better than using plastics. I use it for crackers , cereal, honey jam, left overs. It seals very well, and has been easy to use and cost effective. I would recommend.
P**O
Me funcionó muy bien, y después de bastante uso sigue funcionando.
P**C
Good pricing for such a useful jar sealer, works very well.
B**N
awesome little sucker. i started storing leftovers and dry goods, noodles, flour, sugars into mason jars and this little beauty seals the lids perfectly. not sure how much suction its got but in about 60 seconds the lids are flat. it has a little rechargeable battery that holds a charge for a long time as well. me happy - yes.
A**W
This mason jar vacuum sealer has been a great addition to my kitchen setup. It’s straightforward to use, seals consistently, and takes the guesswork out of vacuum-sealing jars. The unit feels solid, and everything fits together as expected without fiddling. I like that it works with common jar sizes and that the kit includes useful extras right out of the box. Seals have been strong and reliable, and the overall design feels practical rather than gimmicky. One small downside: Charging could be more clearly indicated, as it’s not always obvious at a glance when it’s fully topped up. Overall, this is a well-designed, dependable vacuum sealer that does exactly what it promises. I’d happily use it long term and would buy it again.
J**B
⭐️⭐️⭐️⭐️ - 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 !
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