1、 Storage precautions

空氣當中的氣體水分，對于包裝材料是有滲透的，滲透系數與溫度有的密切關系，一般的情況下，溫度越高，滲透系數越大，對包裝材料的滲透也就越嚴重。因此對于真空包裝袋包裝的食品，要放在低溫下貯存，如果放在高溫下貯存，會嚴重影響包裝袋的滲透率，使食品發生變質。一般的真空包裝食品放在低于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、操作注意事項

2、 Operation precautions

1、首先要注意食品真空包裝袋熱封的時候，要注意封口部位不要粘有油脂，蛋白質，食品之類的殘留物，確保封口能夠全完的熱封起來。

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、對于真空包裝過的包裝袋加熱處理的時候，應該嚴格的控制好溫度以及的時間，避免因為溫度過高造成包裝袋內部壓力過高，導致包裝袋封口分離、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、食品真空包裝的包裝袋抽氣，特別是對生鮮肉類和沒有定形的食品真空包裝，不能殘留氣體，防止殘留下來的氣體導致真空包裝袋內的食品腐敗變質。

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、適用范圍注意事項

3、 Notes on scope of application

食品真空包裝不適宜的產品就是那些易碎的食品，如果這些食品帶棱帶角的話，容易把包裝袋戳破、穿透。所以，這類食品不要用抽真空包裝，采用其他包裝，如充氣體真空包裝袋。

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.