Snack bags are not only used to hold snacks, but their quality, function and design have a profound impact on snack quality, consumer experience, and even environmental protection. Choose a snack bag, need to consider from many aspects. ​

1.Choose according to the characteristics of snacks

Shape adaptation: snacks have various forms, and the packaging bag needs to be adapted to them. Chip snacks, such as potato chips, in order to prevent breakage, should be selected filled with nitrogen aluminum foil composite bag, aluminum foil can avoid light, moisture, nitrogen can buffer pressure, protect the integrity of potato chips. For snacks with shells or hard texture such as nuts, the inner layer of woven bags with high strength and good toughness and plastic film packaging are selected to prevent sharp edges and corners from puncturing the package. Soft and sticky snacks such as dried fruit and dried meat should be packaged in ziplock bags to facilitate multiple access and keep the snacks fresh. ​

Feature protection: Different snacks have different requirements for storage environment. High-fat snacks are easy to oxidize and rancidity, so it is necessary to choose packaging materials with good oxygen resistance, such as aluminized film packaging bags, effectively isolate oxygen and extend shelf life. For snacks that are sensitive to moisture, such as cookies, use packaging with good moisture resistance, such as polypropylene (PP) material packaging bags to prevent moisture from becoming soft and affecting the taste. ​

2. Meet the needs of packaging functions

Convenience: In order to improve the consumer experience, snack bags need to be convenient. Easy tear design is convenient for consumers to open and reduce the trouble of using tools. For snacks with larger portions, self-sealing zipper design is used to facilitate multiple access and keep snacks fresh. In addition, some snacks can be packaged independently in small packages, which is convenient to carry and control the amount of food. ​

Safety: Snack bags must ensure food safety. Packaging materials directly in contact with snacks should meet food hygiene standards, non-toxic, tasteless, and will not chemically react with snacks to avoid harmful substances migrating to snacks. ​

3.Consider the material characteristics

Physical properties: The physical properties of the packaging material are related to the durability of the packaging. Plastic material has good flexibility and corrosion resistance; Paper packaging environmental protection, good air permeability, but moisture resistance is relatively weak; Metal packaging has higher strength and barrier property. Select a packaging material that matches the physical properties of the snack. ​

Chemical stability: The packaging material should have stable chemical properties, and does not react with snack ingredients and the external environment during storage and transportation to ensure stable snack quality. ​

4.Fit the design style

Attract consumers: The design style of the snack bag needs to meet the preferences of the target consumer group. Snacks for children, packaging can use bright colors, cartoon images, to attract children's attention; Snacks for young people, the design can be integrated into fashion, trend elements, show personality. ​

Transfer information: The packaging bag should be clearly marked with the name of the snack, ingredients, production date, shelf life, eating method and other information, so as to facilitate consumers to understand the product and make purchase decisions. ​

5. Pay attention to environmental protection requirements

In the increasing awareness of environmental protection, priority should be given to environmentally friendly snack bags. Degradable materials, such as polylactic acid (PLA) material packaging bags, can be decomposed in the natural environment to reduce plastic waste pollution. At the same time, the use of recyclable packaging materials is promoted to reduce resource consumption and achieve sustainable development. ​

The selection of snack bags needs to comprehensively consider the characteristics of snacks, packaging functions, material characteristics, design style and environmental protection requirements, while ensuring the quality of snacks, meeting the needs of consumers and practicing the concept of environmental protection.