An curved arrow pointing right. When a jar is vacuum-sealed, the different air pressures make it hard to open. But you can use a few simple tricks to break that stubborn seal. Follow Tech Insider ...

Impossible, that is, without the aid of a jar opening trick or two - we'll get to those soon. Why are jars so hard to open? The main reason is one you can hardly begrudge: It's the vacuum seal ...

If you could name the most frustrating things to happen in a kitchen, figuring out how to open a stuck jar has to be the top of the list. It doesn't matter how much upper body strength you may ...