France developed a frozen food cooler bag for supermarket use

France has successfully developed a frozen food cooler bag suitable for supermarkets. As a result, the problem of changing the flavor of the frozen food after being removed from the supermarket freezer is solved. 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 there are various kinds of heat preservation bags capable of holding different temperatures such as 3, 2, 0, -4, -10 degrees Celsius and the like and long-term use of the heat preservation bags, and the capacity sizes are not equal.

Source: "Global Flexible Packaging Industry"