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Posted (edited)

What are you trying to accomplish?

Food manufacturers rarely vacuum pack. For instance, you can't vacuum pack a package of crispy potato chips anyway or you'd crush them. Notice that this type of package is usually ballooned out rather than vacuum sealed.

Cheaper and faster is to have the open end of the package upright, insert a nozzle and fill it with carbon dioxide, and then seal it with heat. There can be little spoilage in the absence of oxygen. CO2 is heavier than oxygen (02) because it has an extra carbon molecule, and it will displace the oxygen.

Only 20% of air is oxygen but oxygen is what contributes to the growth of microorganisms which cause spoilage, and "oxidization."

You can also buy oxygen absorbers to put in something like 5 gallon packages, immediately heat seal the package, and if the food is fairly dry the food might last for decades. The package will be made of mylar which is impervious to oxygen for longest preservation. After the 02 absorber is placed and the package sealed, the package will draw tighter as in a mild vacuum pack, because 20% of the air in the package - the oxygen - is literally absorbed never to return.

Oxygen absorbers and mylar bags are available on the internet, and compressed CO2 is available at welding supply shops or soft drink machine suppliers. 02 absorbers and mylar bags are standard equipment for the doomsday self-preservation crowd.

I don't know if any of this addressed your question?

Edited by NeverSure
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