1、 Storage precautions

空气当中的气体水分，对于包装材料是有渗透的，渗透系数与温度有的密切关系，一般的情况下，温度越高，渗透系数越大，对包装材料的渗透也就越严重。因此对于真空包装袋包装的食品，要放在低温下贮存，如果放在高温下贮存，会严重影响包装袋的渗透率，使食品发生变质。一般的真空包装食品放在低于10℃以下保存。

The gas moisture in the air is permeable to the packaging materials, and the permeability coefficient is closely related to the temperature. Generally, the higher the temperature is, the greater the permeability coefficient is, and the more serious the permeability to the packaging materials is. Therefore, food packaged in vacuum packaging bags should be stored at low temperature. If it is stored at high temperature, the permeability of packaging bags will be seriously affected and the food will deteriorate. General vacuum packaged food is stored below 10 ℃.

二、操作注意事项

2、 Operation precautions

1、要注意食品真空包装袋热封的时候，要注意封口部位不要粘有油脂，蛋白质，食品之类的残留物，确保封口能够全完的热封起来。

1. First of all, pay attention to the heat sealing of food vacuum packaging bag, pay attention to the sealing part not to stick grease, protein, food and other residues, to ensure that the sealing can be completely heat sealed.

2、对于真空包装过的包装袋加热处理的时候，应该严格的控制好温度以及的时间，避免因为温度过高造成包装袋内部压力过高，导致包装袋封口分离、破裂。

2. For the heating treatment of vacuum packed bags, the temperature and time should be strictly controlled to avoid the high internal pressure of the bag caused by the high temperature, resulting in the separation and rupture of the seal of the bag.

3、食品真空包装的包装袋抽气，特别是对生鲜肉类和没有定形的食品真空包装，不能残留气体，防止残留下来的气体导致真空包装袋内的食品腐败变质。

3. In the vacuum packaging of food, especially for fresh meat and unfixed food, no residual gas is allowed, so as to prevent the food in the vacuum packaging from spoiling.

三、适用范围注意事项

3、 Notes on scope of application

食品真空包装不适宜的产品就是那些易碎的食品，如果这些食品带棱带角的话，容易把包装袋戳破、穿透。所以，这类食品不要用抽真空包装，采用其他包装，如充气体真空包装袋。

The products that are not suitable for food vacuum packaging are those fragile foods. If these foods have edges and corners, it is easy to puncture and penetrate the packaging bags. Therefore, this kind of food do not use vacuum packaging, using other packaging, such as gas filled vacuum packaging bags.