stainless steel insulated food jar

An insulated food jar is a container made of double-layer stainless steel to keep the temperature of food unchanged for a long time. Its working principle is the same as that of the insulated water bottle. The vacuum layer between the inner and outer layers of stainless steel is used to isolate the heat conduction of the air, so as to avoid the rapid temperature change of the food it contains. Because of its excellent performance, the insulated food jar is often used to keep food warm in outdoor activities such as camping. Even in the cold winter outdoors, the insulated food jar can bring you warm food.