The retention time of the Cooler Bag will vary depending on a number of factors. Generally speaking, the ordinary outdoor ice storage time is about 12 hours to 48 hours.
The following factors affect the retention time of the ice pack:
First, the quality and performance of the ice pack
Thermal insulation: Ice wrap with high-quality thermal insulation materials has better cooling effect and longer cooling time. For example, ice packs with high-efficiency insulation materials such as high-density polyurethane foam can effectively reduce the introduction of external heat, thereby extending the cooling time.
Sealing performance: Good sealing can prevent the leakage of cold air and the entry of external hot air. If the zipper, lid and other parts of the ice pack are tightly sealed, the cooling time will increase accordingly. On the contrary, a poorly sealed ice pack is easy to lose cold air, and the cooling time will be greatly shortened.
Second, environmental factors
External temperature: In a high temperature environment, the cold air in the ice pack will exchange with the outside heat more quickly, and the cooling time will be shortened. For example, in the hot summer, the outside temperature may reach more than 30 degrees Celsius, and the cooling time of the ice pack may be much shorter than in the cool spring and autumn season. In a lower temperature environment, the cooling time will be relatively extended.
Direct sunlight: If the ice pack is exposed to sunlight for a long time, it will accelerate the melting of the internal ice, thereby shortening the cooling time. Therefore, in outdoor activities, the ice pack should be placed in the shade as far as possible to avoid direct sunlight.
Third, the way of use
Quantity and quality of ice packs or ice cubes: The more ice packs or ice cubes placed in the ice pack, the better the quality and the longer the cold retention time. You can choose ice packs or ice cubes with large capacity and good freezing effect to improve the cold retention performance. Also, make sure that ice packs or ice cubes are fully frozen before use.
Item placement: If there are too many items placed in the ice pack, or the temperature of the item itself is high, it will affect the cold retention effect of the ice pack. When placing items, try to leave a certain space so that cold air can be fully circulated. In addition, avoid putting hot food or drinks directly into the ice pack, you can cool it first before putting it in.
