What is Thermal Bag / Cooler Bag?

Why thermal bags can achieve the effect of heat preservation/refrigeration

The insulation principle of all Thermal Bag / Cooler Bag is to prevent the spread of heat. There are three ways of heat transfer: conduction, convection, and radiation. Starting from these three ways to isolate heat transmission, the purpose of heat preservation can be achieved. The materials used in the Thermal Insulated Box Liner: the plastic shell and the foamed plastic in the heat insulation layer are poor conductors of heat, and the foamed plastic is filled in the middle, which also prevents convection and can block heat radiation to the greatest extent. These are all insulated boxes that can keep warm s reason.

Use with ice or ice packs

When filled with ice or ice packs, insulated bags can maintain a safe temperature for up to 12 hours, perfect for transporting perishables. On the other hand, the temperature will rise gradually. If you want your sandwiches, meat, frozen meals, baby bottles, groceries, and other perishable shipping things to remain usable, etc., you'll need to arrange them appropriately. Perishables, such as hot and fresh food, should be eaten as soon as possible to prevent deterioration, so make sure to carry enough of reusable ice packs and consume them quickly.

Still, insulated bags may be a terrific companion in keeping your food cold, whether you're taking it to the workplace for a few hours or utilizing it for a full-day picnic when traveling. These bags are also quite useful for shipping and delivering food.

But it's important to remember that ice may melt more quickly than the estimated time if you're using it outside or if the temperature is higher than normal.

Some warm tips

When packing your insulated lunch bag, remember to add some hand wipes, so you can clean your hands before eating if there are no facilities nearby. When you return home and empty your bag or box, wipe the insides with hot soapy water and let it air dry so that it is ready for your next adventure.

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