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June 3, 2023

POPit Jar Opener


Rain Noe took a deep dive on this device for an article in Core77; excerpts below.

Compact Jar Opener Doesn't Rely on Grip, Force or Leverage

Here's a good example of outside-of-the-box design thinking from British company Pro4UK.

Conventional jar openers are designed to increase grip and leverage, forcing reluctant lids open with brute strength.


Pro4UK reckons this is the wrong way to solve the problem.

"The reason why jars are so difficult to open," they write, "is due to the vacuum inside causing a pressure difference between the inside and outside of the jar. This difference in pressure creates a downward force on the lid, making it difficult to remove."

Their invention, POPit, "removes the problem rather than trying to overpower it."

It consists of two pieces of plastic, a top and a bottom.

Go ahead  try again

Inside is a spring.

A needle is embedded in the center of the top.

Screenshot 2023-06-01 at 7.32.39 AM

When the top is rotated to the "unlock" position indicated by an icon,


you press it downwards.

Screenshot 2023-06-01 at 8.09.09 AM

The needle then extends from the bottom.


By placing it atop a jar and puncturing the lid,


pressure inside and outside the jar is equalized as the vacuum is broken.


Subsequently opening the jar is nearly effortless.

Screenshot 2023-06-01 at 8.08.38 AM

I don't imagine the diminutive pinhole in the lid would be a problem; it looks too small for bugs to get into, or for fluids to come rushing out of if knocked over.

I suppose one issue might be if you've got a strongly fragrant foodstuff (i.e. kimchi), you'd probably worry about the smell permeating the 'fridge.

But I'm guessing this would work fine for 99% of people.


On the fence?


the video.

June 3, 2023 at 08:03 AM | Permalink


There will be SOME movement of air even through a tiny hole,
but the effect would be dwarfed by simply opening the jar at all.
That last bit of marmalade is only going to last so long after it's opened.

Posted by: Luke | Jan 27, 2024 10:02:59 AM

Ms Radoo and antares,
I am intrigued by your comments - you sound like experts on the subject.
I believe the subject is "airborne transmission" of Mold spores and bacteria.
Can you please explain how POPit facilitates the transmission as when the lid is closed, there is no movement of air?

Posted by: Lovetruth | Jan 27, 2024 5:04:11 AM

Y'all acting like you can't just put a piece of scotch tape over the hole.

Posted by: g-bull | Jun 5, 2023 10:24:19 AM

I agree with Ms. Radoo. This device trades one problem for another, and the new problem is much worse.
Besides, £11.95? A pushpin -- 4¢ -- will do the same.

Posted by: antares | Jun 3, 2023 5:36:02 PM

Mold spores and bacteria are more of a worry than bugs, though some of those critters are quite tiny. A jar with a punctured lid is less reusable, as well. And finally, this will do nothing for a jar that's been reclosed too tightly. No sale!

Posted by: Ms. Radoo | Jun 3, 2023 9:38:43 AM

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