In recent years, with the rapid development of the leisure food market, the safety of various snack packaging bags has become the focus of consumers. 

Experts remind that the material, sealing and use of packaging bags directly affect the quality of food and consumer health, so be cautious when 

purchasing and using them.

1. Material safety is the key

Food packaging bags must comply with national food safety standards. Common qualified materials include food-grade polyethylene (PE), polypropylene (PP), etc. 

Consumers should avoid buying packaging bags with pungent odors or blurred printing. Such products may contain plasticizers, heavy metals and other harmful substances.

2. Sealing affects the preservation effect

Good sealing performance prevents snacks from getting damp, oxidized or deteriorating. Packaging bags on the market usually use self-sealing, zipper or 

hot-pressing sealing designs, and should be sealed in time after use. If the packaging is found to be leaking or damaged, it is recommended to stop eating and 

contact the merchant.

3. Pay attention to label information

The production date, shelf life, ingredient list, storage conditions and production license number (such as SC code) should be indicated on the packaging of 

regular products. Consumers should avoid buying "three-no" products, especially snacks that are in bulk or of unknown origin.

4. Environmental protection and secondary use

Although some packaging bags can be reused, they need to be kept clean and dry to avoid bacterial growth. Experts recommend giving priority to packaging

made of degradable materials to reduce environmental pollution.

5. Special groups need to be cautious

Children, pregnant women and other groups should avoid contact with plastic packaging that may contain bisphenol A (BPA), and can choose products marked "BPA Free".

The industry calls for strengthened supervision

Enterprises should strictly control the safety of packaging materials, and relevant departments should also increase spot checks to ensure consumer rights.

Experts remind that small packaging bags are related to health. Only by paying attention to details can "safety on the tip of the tongue" be more guaranteed.