Have a look at http://www.storeshop.com/food_saver.html
It is a complete food saver kit for vacuum food storage. It works using special jars with lids that have valves in them.
You pump out the air with the included pump to create a vacuum.
When you want to release the food from the food vacuum storage, you press the valve on the lid which lets in air, releasing the lid.
Great for storing coffee, cookies, crisps etc.
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