
UNERVER · Jar Vacuum Sealer
UNERVER M12 Smart Electric Mason Jar Vacuum Sealer
~C$39
The UNERVER M12 is a portable electric Mason jar vacuum sealer designed to make dry-food and pantry storage easier. It uses one-button operation with auto-stop sealing, and the LED screen shows the vacuum pressure as it works. With a cordless rechargeable design and support for both wide and regular mouth jars, it fits well into everyday kitchen prep.
Pros
- + One-button auto-stop operation keeps sealing simple
- + LED display shows vacuum pressure while sealing
- + Cordless USB-C design is easy to use around the kitchen
- + High-capacity battery is rated for about 350 jars per charge
- + Includes both wide and regular mouth lids plus a cap opener
Cons
- - Works specifically with Mason jar-style lids rather than general food containers
- - Battery-powered design means it needs recharging between heavy canning sessions
- - Vacuum sealing helps storage but is not a substitute for full heat canning methods
- - Included lid count is modest if you seal large batches at once
Key Specs
- Power
- Rechargeable battery
- Display
- LED screen with negative pressure readout
- Charging
- USB-C
- Operation
- One-button auto-stop vacuum sealing
- Battery Life
- About 350 jars per charge
- Jar Compatibility
- Wide mouth and regular mouth Mason jars
- Included Accessories
- 5 wide mouth lids, 5 regular mouth lids, cap opener
Our Verdict
A handy pick for shoppers who want faster, less fiddly Mason jar vacuum sealing without a manual pump. It’s especially appealing for pantry organization and small-batch food storage, as long as jar compatibility matches your setup.
Best For
Home cooks, meal preppers, and pantry organizers who use Mason jars regularly and want a simple cordless vacuum sealer.
How It Compares
| Spec | UNERVER M12 Smart Electric Mason Jar Vacuum Sealer | Ataller Food Scale with Nutritional Calculator |
|---|---|---|
| Price | ~C$39 | ~C$32.58 |
| Power | Rechargeable battery | — |
| Display | LED screen with negative pressure readout | — |
| Charging | USB-C | — |
| Operation | One-button auto-stop vacuum sealing | — |
| Battery Life | About 350 jars per charge | — |
| Jar Compatibility | Wide mouth and regular mouth Mason jars | — |
| Included Accessories | 5 wide mouth lids, 5 regular mouth lids, cap opener | — |
| Brand | — | Ataller |
| Price | — | CAD 32.58 |
| Category | — | Smart Kitchen |
| Product Type | — | Food scale with nutritional calculator |
Frequently Asked Questions
Does it work with both Mason jar sizes?
Yes. The listing says it supports both wide mouth and regular mouth Mason jars, and includes lids for each.
How is it charged?
It uses USB-C charging and has a rechargeable battery rated for about 350 jars per charge.
jar-vacuum-sealermason-jar-sealercordless-kitchen-gadgetusb-c-rechargeablefood-storagepantry-organizationwide-mouth-compatibleregular-mouth-compatible



