How to detect the vacuum effect of vacuum packing bag

What is the effect of vacuum, as the name implies, namely reach vacuum bags inside, inside without any gas, to make food products such as unable to react with oxygen in the air, carbon dioxide and other gases, extend the shelf life of a packaging effect. How to detect the vacuum effect through the instrument, test the vacuum packing bag internal residual gas contains how much oxygen or carbon dioxide, the content value is directly reflects the vacuum effect. Residues, the more that the vacuum effect is poor, the less residue, the effect of vacuum, the better. Commonly used test equipment are: vacuum packing residual oxygen meter, this is the most commonly used food vacuum packaging testing instruments. Why to test for a vacuum effect by vacuum packaging products are usually for a certain gas is sensitive, very easy to react with the resulting in product quality becomes poor or bad, sometimes also can produce gas, make the vacuum bag. Inspection vacuum effect, that is, vacuum bags, residual gas content exceeds a certain value, it can lead to product deterioration, and the effectiveness of vacuum is can't meet the demand, need to change. That is to say, the effect of vacuum detection, that is, whether packaging is suitable for the product, whether the qualified standard. Effect of vacuum testing case analysis chicken vacuum packaging vacuum effect, is to prevent chicken mildew, bags. After sterilization of roast chicken in residual microorganism, spore mostly aerobic type, such as the growth of microorganisms or spore need oxygen, while by vacuum packing which can effectively prevent chicken contact with oxygen, so as to prevent microbes breeding. Randomly from the market to buy three bags of vacuum packing roast chicken. Tested, this three bags of vacuum-packed chicken oxygen residue 0 respectively. 5毫升,0。 11毫升,0。 08年毫升。 The residues of oxygen in the vacuum packing is affecting the quality of packaging within one of the important factors, in addition, to ensure the quality of the products in shelf period does not occur degradation, vacuum packing products should also pay attention to the barrier property of packaging materials ( Including oxygen through quantity and packaging after rubbing the oxygen through the amount) , packaging, sealing performance, heat sealing performance indexes such as strength.