Using coffe jars for pickling

With your wife's permission you can put your pickle anywhere you want.

I know very little about pickling but I think this would be a terrible idea for preserving food. Nescafe jars don't have the special seal to create the necessary vacuum, not failing to mention you likely need to doubly make sure the jars are properly sanitized. Sounds like an easy way to get food poisoning.

Use these Ball containers. They're made of glass and have a vacuum seal on top. You can buy them anywhere - Target, CVS etc. and they are cheap.

seems like you're not the first person to think of this

http://forums.moneysavingexpert.com/showthread.php?t=1912099

there are other types of jars I'd use first since the plastic screw lids wouldn't make a proper seal easily, but it does seem to be possible