1、 Working principle of insulation package

The principle that insulation bags can maintain heat or cold is achieved by protecting the heat exchange between items and the external environment. The insulation material in the insulation bag can reduce heat transfer, thereby extending the insulation or cooling time of the item.

2、 The time for keeping the insulation package cold

The cold insulation time of the insulation package is influenced by various factors, including the insulation material of the insulation package, the temperature of the external environment, the initial temperature of the item, and the size of the insulation package. In general, the insulation package can keep the cold for a period of 4-10 hours. If you want to extend the insulation time, you can take some measures, such as cooling the insulation package in advance, adding ice or frozen elements, and opening the insulation package as little as possible.

3、 Selection and usage suggestions for insulation bags

1. Choose insulation bags with good quality, good insulation effect, and easy to clean;

2. Cool the food in advance to reduce the increase in temperature inside the insulation bag;

3. Pay attention to the temperature inside the insulation bag to avoid excessive refrigeration or heating, which may affect the taste and quality of the food;

4. Regularly clean the insulation bag to maintain hygiene.

In summary, the cold insulation time of insulation packages is influenced by various factors, and generally can maintain cold insulation for 4-10 hours. Therefore, when using insulation bags, attention should be paid to the selection of insulation bags, pre cooling of items, adding ice or freezing elements, and other methods to extend the insulation time.