Jar Opener Bottle Opener and Ring Pull Can Opener £5.99 Dispatches from Amazon Sold by THbrother

Just use a bottle opener to relieve the pressure.

A good solid tap or two on the top edge of the lid with the back of a knife will release the seal and it will open with ease.

Can’t recommend - bought one exactly the same (sold under loads of different ‘brands’) - it snapped in half in use after about a month. (edited)

I gave up on a flexible version of this. On the odd occasion the teeth gripped the lid, i couldn't grip the jar.

I now use a pair of these - Ansell Tuf Duk. These are pretty heavy duty, but you should get the same effect from lighter gloves as long as the fingers/palms have a decent grip surface.

You don't need anything like this, just tap the edges of the jar lid on something strong like the ledge of concrete. Loosens the lids grip. (edited)

Any good for taking off an oil filter?

This Vs a jar of Gherkins.

Quick hack. Gently hit the jar's lid on the floor and it's easy to open, you can also use wooden spoon and tap around the lid few times. Otherwise pry the lid with spoon. Works the same.

Just rotate the lid a few times over gas flame (not burning hot)and open with tea towel. Works like charm and no pressure needed.

can use the slim flat end of any cutlery or a butter knife to relieve the pressure of the jar. No need for this at all. (edited)