Why Cooler Bag / Picnic Bag has good cooling performance

In the hot summer, whether it is outdoor adventure, family picnic or simple weekend outing, a Cooler Bag or Picnic Bag with excellent cooling performance is an indispensable companion. They can ensure that food and drinks remain fresh and cool for a long time, and can greatly enhance the comfort and fun of outdoor activities. So, how do these bags achieve such excellent cooling performance?

1. Cooler Bag and Picnic Bag usually adopt a multi-layer composite structure, including a high-density insulation foam layer, an aluminum foil reflective layer and a waterproof and wear-resistant outer layer material. The insulation foam layer, as the core insulation layer, has extremely low thermal conductivity and can effectively slow down the penetration of external heat into the bag space. The aluminum foil reflective layer can reflect most of the solar radiation and external heat, further reducing heat transfer. This design makes the space inside the bag form a relatively closed and stable low-temperature environment, effectively extending the preservation time of food and beverages.

2. Sealing performance is also an important factor affecting the cooling effect. The sealing design of Cooler Bag and Picnic Bag is usually very strict, and the space inside the bag is isolated from the external environment through high-quality zippers, sealing strips and other components. This sealing can effectively prevent the outside hot air from entering the bag, and can also reduce the loss of cold air in the bag, thereby maintaining a constant temperature in the bag.

3. Cooler Bag and Picnic Bag are also equipped with detachable ice bags or ice plates. These ice bags or ice plates are usually made of environmentally friendly and non-toxic gel materials, which can release lasting cold after freezing. Users can put ice bags or ice plates into the bag as needed, and directly contact with food and drinks to achieve a faster and more efficient cooling effect. At the same time, ice bags or ice plates can be used repeatedly, which is both economical and environmentally friendly.

4. Reasonable use and maintenance are also the key to maintaining the cooling performance of Cooler Bag and Picnic Bag. Before use, users should ensure that the bag has been fully pre-cooled, and try to place food and drinks in a lower position in the bag to reduce the impact of heat convection. During use, avoid opening the bag cover frequently to reduce the loss of cold air. At the same time, when cleaning and maintaining, use mild detergent and soft cloth to wipe, and avoid using sharp objects to scratch the bag or damage the insulation layer.