Home Food Production Machines Which is better, nitrogen filled vacuum packaging machine or vacuum packaging machine? What are the differences between various vacuum packaging machines

Which is better, nitrogen filled vacuum packaging machine or vacuum packaging machine? What are the differences between various vacuum packaging machines

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first of all, I’m not an expert, but I think so: the vacuum pumping machine and nitrogen filling vacuum pumping machine are very effective. The only difference is that the oxygen content of vacuum pumping after nitrogen filling is lower. The effect is naturally better, but nitrogen is required for use, and the cost is high. It is estimated that the price of a single machine will be much higher.

it seems that many people misunderstand nitrogen filling. It seems that nitrogen filling is full of gimmicks because of how tall nitrogen is. In fact, we live in a gas environment filled with 78% nitrogen all the time. Generally, in order to achieve the low oxygen packaging effect, vacuum first and clean it. The less residual oxygen, the better the preservation and quality assurance effect in some aspects. After vacuum, some do not fill nitrogen or other gases, such as some rigid containers such as iron cans and glass tubes, and some need to fill nitrogen or other gases, such as plastic boxes, plastic bottles and some large iron cans, Because these containers keep a high vacuum inside, the whole container will be damaged by atmospheric pressure. Some materials can not be in a high vacuum environment for a long time, and gas needs to be filled to balance the internal and external pressure. The purpose of filling nitrogen is mainly to fill. We see a lot of food packed in plastic bags in supermarkets. Due to vacuum, it becomes very hard, and the contents such as meat pieces will also become very hard and dense. If nitrogen is refilled into the bag after vacuum, so that the inside of the bag will not be squeezed by atmospheric pressure, the food inside can remain soft and fresh.

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