1. Is the nitrogen produced by the food nitrogen generator of food grade?

      In this case, it can be said that the food nitrogen generator, which is a nitrogen generator, is certain, because this is its basic requirement. In the food industry, the nitrogen used is food grade, otherwise, it cannot be used.

      2. How can we know that the nitrogen produced by the food nitrogen generator is food grade? In addition, whether the food preservation nitrogen generator belongs to the food nitrogen generator?

      In question one, it's very simple. It's mainly to see if the manufacturer of the food nitrogen generator can provide the nitrogen certificate of the food level. If it can't, it can't guarantee that the nitrogen can reach the food level. Therefore, it's not recommended to use it to avoid problems. As for the nitrogen making machine for food preservation, it can be said that it is one of the nitrogen making machines for food, and it is also undoubted.

      3. Can food be kept fresh with nitrogen?

      Obviously, this is OK, and there is no problem. Moreover, it is generally carried out by using food nitrogen making machine, because it can achieve the above purposes and requirements, and this nitrogen making machine has a good use effect in the air-conditioned fresh-keeping technology.