Plastic Bag Jar Gasket





Introduction: Plastic Bag Jar Gasket

About: Tim Anderson is the author of the "Heirloom Technology" column in Make Magazine. He is co-founder of, manufacturers of "3D Printer" output devices. His detailed drawings of traditional Pacific...

Peanut butter jars and similar jars aren't as waterproof as they should be. That's why people still buy expensive heavy plastic jars at camping stores instead of using the free lightweight ones they have at home.
Mexican fishermen know a better way.
All you have to do is close the lid over a plastic grocery bag.
The plastic bag forms an excellent gasket, keeping your passport, photos, lighter or whatever nice and dry.



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    11 Discussions

    Thats a cashew container isn't it. Kirkland brand to be exact. kirland for sure.

    Who will stop this ugly face TimAnderson from hacking the instructables site to his personal blog? Geez!.. Please admins, start the new version!..

    2 replies

    spinach_dip.... post a link to his blog ;) I'll see how he's doing it

    Do the Mexican fishermen keep shrunken heads in *their* jars, as well?

    1 reply

    excellent idea Tim, with the way things are going in NE I'll certainly need this. My dad has a boat, small electronics are always failing, I'll pass this on.


    12 years ago

    Nice idea...i use plastic wrap too.