When you plan camping,hiking,traveling,or outdoor weekend gatherings,a soft cooler bag is an essential item you may consider.Many outdoor sports enthusiasts have experience regularly using soft cooler bags. Have you ever wondered how a lightweight, flexible bag can keep ice cubes from melting for hours or even 2-3 days?
As an export enterprise specializing in the production of soft cooler bags for over 20 years, let's delve into the three key layers that contribute to the astonishing insulation performance of soft cooler bags.
1. Insulation core material:closed-cell foam
The inner layer of a high-quality soft cooler bag is typically made of a thick layer of PE Foam or EVA, which effectively prevents heat from passing through easily.
When you put cold items inside, these PE FOAM or EVA will slow down the "heat intrusion" from the outside. The thicker and denser the foam, the longer your food and drinks can stay refrigerated. It acts as an insulating layer, providing you with hours of refrigeration protection.
2. Shell and airtight sealing
The outer material of soft cooler bags is usually made of durable polyester, nylon, or coated fabric, serving the functions of abrasion resistance, waterproofing, and moisture resistance. However, more importantly, it can protect the foam core layer from compression. A crushed foam layer will lose its insulation ability.
3. Use airtight zippers
A high-quality leak-proof and airtight zipper is also crucial, as it can effectively trap cold air and block hot air. It prevents warm air from sneaking in through gaps.
In addition, regarding achieving optimal cooling performance, we have the following suggestions:
Cooling down the refrigerator: Place an ice pack 20 minutes before putting food inside.
Use sufficient ice cubes: The more ice cubes, the greater the heat capacity.
Try to keep it sealed and avoid opening it frequently: every time you open the lid, precious cool air is released.
Soft cooler bags provide reliable food refrigeration technology for your outdoor travels.
We wish you a pleasant journey.
