It is crucial to choose safe and reliable products when facing the wide variety of food plastic packaging bags in the market. Mainly grasp the following three points:

Firstly, check the packaging instructions:
Priority should be given to packaging bags that clearly indicate the material (such as polyethylene PE, polypropylene PP) and comply with standards (such as GB 4806.7 for food contact materials).
Polyethylene (PE) and polypropylene (PP) have good chemical stability and relatively simple composition, making them safer and more common choices.
Pay attention to the applicable temperature range and other usage instructions.

Secondly, refer to the execution standards:
Ensure that the product complies with the mandatory safety standards for plastic materials and products in contact with food in China (detailed information can be found on the official website of the National Standards Management Committee). This is the basic guarantee of product safety.

Thirdly, sensory examination (sight, smell, touch):
Hope: Prioritize choosing colorless, transparent, and clean bags. Avoid using colors that are too bright or cloudy.
Smell: No odor is key. Qualified PE/PP bags should have no special odor. If you smell an unpleasant odor (especially pungent or sweet), you should avoid using it as it may contain unsafe ingredients such as chlorine (such as PVC).
Touch: Rub and check if the surface is smooth and free of particles or foreign objects.
Pay attention to tearing sensation: PE material is usually relatively easy to tear. Bags that are excessively tough and difficult to tear (especially those with an odor) may have used unsafe additives or materials (such as PVC) and are not recommended for use in food.

Important reminder: Although the above three points can effectively judge the pros and cons, to fully ensure safety, it is still necessary to rely on legitimate manufacturers and clear labeling. Be vigilant and avoid using plastic bags made of polyvinyl chloride (PVC) to hold food, as they pose a high safety risk.

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