The ancient Romans already knew that double containers could keep warm. In the ruins of Pompeii, a double container was dug up. The modern thermos was invented by the Scottish physicist Dewar. At 1892, he told the glass manufacturer Berg to blow a special glass bottle. This is a double-layer glass container, the walls of both layers are plated with silver, and then the air between the two layers is pumped out to form a vacuum. Because the silver on the wall of the double-layer liner can prevent radiation heat dissipation, and the vacuum can prevent convection and conduction heat dissipation, the temperature of the liquid in the glass bottle is not easy to change.

Later, Berger made a shell out of nickel to protect the fragile glass bottle lining. At first, it was only used in laboratories, hospitals and expeditions, and later it was also used for picnics or trains. From 65438 to 0925, it began to sell popular cheap plastic thermos bottles.