Bags come into direct contact with food, so the quality of bags affects not only the safety of food, but also the quality of food. When buying food packaging bags, we must pay attention to the following points.
1, food packaging bag customization manufacturers must be qualified formal enterprises;
2. Food packaging bags produced by customized manufacturers must meet food safety standards. Non-toxic and clean packaging materials, tableware, drinking utensils and containers should be used for food directly imported.
3, the selection of food packaging materials should meet the following requirements: degradable or easy to recycle, in line with environmental protection requirements; Comply with relevant hygiene standards for food containers and packaging materials.
4. The container and outer package of food in bulk shall be marked with the name of food, production date or batch number, shelf life, name, address and contact information of the producer and operator, etc.
5, qualified food packaging factory sales must be printed "QS" mark, without this mark shall not enter the market for sale.
6, the food bag should have enough thickness and strength, so as to ensure the function of the food bag.
Specifically, the following points should be observed when purchasing bags:
1, look, to understand the material of food packaging bag, see whether the whole is transparent, whether the material is uniform, qualified packaging bag is more uniform.
2. Touch and feel with your hand whether there will be a sticky feeling. Qualified vacuum bags are easier to open without a sticky feeling. A sticky vacuum bag should not be used as a food vacuum bag.
3, smell, food packaging bags should be processed with food grade packaging materials, qualified food packaging bags are no odor, such as special smell vacuum packaging bags, can not be used to pack food.
4. In addition, for vacuum packaging bags with high requirements, composite materials need to be selected. The common single layer material can be vacuumed, but the damage rate and air leakage rate are relatively high. Qualified vacuum packaging bags are multi-layer composite packaging, such material is relatively strong, and as a vacuum packaging will not leak air.
