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Principle of hardening of bagged objects after vacuum pumping

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vacuum packaging is to carry out vacuum packaging in the vacuum packaging machine, because the vacuum pumping process will form a great extrusion pressure, and the cereal will be tightly squeezed together. Only in this way can the air be squeezed out and pumped out, and finally the vacuum packaged food can be obtained

what you said about hardening may be due to extrusion and dehydration in the cereal caused by vacuum pumping, so the taste is hard
it is suggested whether the vacuum degree (vacuum time) of vacuum packaging can be reduced to solve this problem.

the principle of atmospheric pressure, the action of atmospheric pressure

I don’t know


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