In general, Cooler boxes are primarily designed to keep food and beverages cold to prolong their freshness. As a result, the main function of the Cooler box is to keep it cool rather than warm.

    Cooler boxes typically use insulation to reduce heat transfer, such as polyurethane (PU), polystyrene (EPS), etc. These materials have good thermal insulation, which can effectively slow the transfer of heat to the contents of the box. So for a certain amount of time, Cooler box can help keep food and beverages cold.

    However, since the Cooler box is designed to keep it cold, its heat retention is relatively poor. Hot boxes are specifically designed to keep food and beverages warm. These insulation tanks typically use better insulation materials and insulation structures to provide better insulation and maintain the temperature of food and beverages.

    If you need thermal insulation, it is advisable to choose appliances specifically designed for insulation, such as insulation tanks, insulation bottles, etc. Using materials and structures that are better suited for insulation, they are better able to keep food and beverages warm.