France developed a successful frozen food cooler bag

Since frozen or deep-frozen foods are the main food of French families, the fact that foods are frozen and frozen after being taken out of supermarket freezers often changes the flavor. In order to solve this problem, France has successfully developed a frozen food warmer bag suitable for supermarkets.
According to reports, the appearance of such insulated bags is similar to supermarket plastic bags and paper bags. The bag is divided into two layers, the outer layer is general plastic or thick paper, the inside is made of nylon fiber insulation layer, the bag is sealed tightly above. The bag has a heat preservation effect and can hold various kinds of heat preservation bags of different temperatures such as 2, 3, 4, 0, -4, -10 degrees Celsius, and heat preservation bags used for a long time, and the capacity sizes are not equal.