Food composite plastic bags are a very common food packaging material. Its advantages are good preservation effect, moisture and mildew resistance, good transparency, light weight, low price, etc. However, with people's higher and higher requirements for food safety, choosing a suitable food composite plastic bag has become very important. Therefore, this article will introduce you to some correct methods of choosing food composite plastic bags.

First, choose the right material. Common composite materials include: polyethylene\/aluminum foil\/polyethylene, polyethylene\/polyester, polypropylene\/polyethylene, etc. Polyethylene\/aluminum foil\/polyethylene materials have good anti-permeability and preservation effects, and are suitable for foods that need to be stored and transported for a long time; polyethylene\/polyester materials have good softness and anti-corrosion properties, and are suitable for packaging various fresh foods such as meat and fish; polypropylene\/polyethylene materials have good heat resistance and toughness, and are suitable for frozen foods and microwave foods.

Secondly, choose the appropriate thickness. The thickness of the plastic bag directly affects the preservation effect and durability. Generally speaking, the thicker the food packaging bag, the better its moisture-proof, anti-oxidation and preservation effects. However, if the material quality is not good enough, the greater the thickness, the corresponding effect cannot be achieved, but the cost will increase. When choosing, you can choose according to factors such as the type, quality, and storage time of the food to be packed. Reasonable selection can not only improve the packaging effect, but also reasonably save costs.

Thirdly, you should choose a regular supplier. As we all know, plastic bags are a kind of cheap food packaging bags, but the quality varies, and there are many inferior products on the market. When buying food composite plastic bags, you must choose regular manufacturers and suppliers. Regular suppliers will have a complete production process and quality inspection system, and the bags produced will not only meet the hygiene standards, but also will not cause pollution to food.

Finally, we should pay attention to transportation safety after packaging. For food transported over long distances, be sure to add fixings such as bubble paper, foam plastic or other filling materials to the food composite plastic bag to prevent extrusion and friction during transportation. In addition, the bag filled with food should also be placed properly and kept stable to ensure that there will be no accidents during transportation.

In summary, when choosing food composite plastic bags, you should not only look at the price, but also pay attention to the material, thickness, supplier and traffic safety. Reasonable selection of packaging bags can not only ensure the quality of food, but also reduce food waste and safeguard food safety.