Here is a video that will show you an amazing trick! I’m posting the video with the permission of Paula Rhodes, www.Salad-in-a-jar.com and also www.paularhodes.com who developed this idea. She has a lot of other great info on her site also.
I tried this, and it works! You can use an ordinary glass jar that had a seal when it was new, or mason jars too. Very simple, and all you need is a $6 tool and some electrical tape. Really, check this out! She gives you complete instructions.
It would be excellent for keeping fresh produce fresh for a longer period of time. I’m going to use it to store dehydrated veggies also.
Here’s the video: http://www.youtube.com/watch?v=NMDfyRjfBbc