Airtight food preservation.
In just 6 to 8 seconds.
LockNJar delivers effortless, professional vacuum sealing straight to your pantry. Keep your ingredients fresh up to 5x longer with one simple touch.
Trapped Oxygen,
Lost Quality
- Dry goods going stale in days
- Flavour loss and nutrient decay
- Wasting money on spoiled bulk food
- Exhausting manual hand pumps
One Touch,
Everlasting Fresh
- Keeps food fresh 5x longer
- Powerful -80 kPa airtight seal
- Massive annual grocery savings
- Effortless 6-second operation
6-Second Seal
Instant automatic lock
5x Freshness
Locks flavour & nutrients
One-Touch Simplicity
Automatic stop sensor
Save $1,000+
Per year on groceries
Industrial-Grade Power.
Effortless Kitchen Organisation.
Extreme air extraction for maximum shelf-life
LockNJar creates a deep vacuum that removes air and moisture from your mason jars, halting the oxidation process that ruins the taste and vitamins of your dry goods.
- Powerful -80 kPa suction strength
- Removes oxygen & moisture fast
- Seals airtight in only 6 to 8 seconds
Universal fit for all mason jars
No more searching for specific adapters. The LockNJar works seamlessly with both regular-mouth (2.75") and wide-mouth (3.4") jars for total kitchen versatility.
A full month of power on one charge
Powered by a long-lasting lithium core, LockNJar delivers up to 30 days of standby and hundreds of seals per charge. Charging is effortless via the Type-C port.
Powerful performance, zero noise
Weighing just 488g and operating under 60dB, the LockNJar is portable enough for travel and quiet enough for late-night kitchen organisation without waking the family.
- Whisper-quiet motor (<60dB)
- LED battery indicator display
- Ultra-lightweight 488g build
Fresh Preservation in 3 Simple Steps
No learning curve, no messy cords. Just airtight, fresh mason jars in seconds.
Cover the Jar
Place your standard metal lid onto your regular or wide-mouth mason jar filled with dry goods or preserves.
Press Once
Fit LockNJar firmly over the lid and press the power button to start the powerful -80 kPa vacuum cycle.
Automatic Stop
The sealer finishes automatically in 6 to 8 seconds. Enjoy food that stays crisp and fresh 5x longer.
Meet LockNJar
LockNJar Mason Jar Vacuum Sealer
Electric One-Touch Food Preservation
- Powerful -80 kPa Suction Core
- Regular & Wide-Mouth Adapters
- Long-Life 2000mAh Battery
- One-Touch Automatic Stop
Why LockNJar Wins
See how LockNJar stacks up against traditional food preservation methods.
What Australian Kitchens Say
Based on 2,847+ verified reviews
"I buy pantry staples in bulk to save money, and the LockNJar is a total game changer. My nuts, oats, and grains stay perfectly crunchy for months. The suction power is incredible!"
"Way better than my manual hand pump. This seals the jar in a few seconds and the battery lasts for weeks. Fits all my standard mason jars with no issue."
"I use it for my homemade jams and dehydrated fruit. It's incredibly quiet and powerful. It has definitely paid for itself in reduced grocery waste already!"
30-Day Freshness Guarantee
Try LockNJar risk-free for 30 days. If your food doesn't stay fresher or if the device doesn't streamline your kitchen organisation, we'll refund you every cent. No questions asked.
Got Questions?
Everything you need to know before getting started
Take control of your kitchen freshness today
Join over 2,847 Australian households who have eliminated food waste and saved hundreds with the LockNJar sealer.
Claim 50% Off Now