There are two kinds of glass liners: red liner and white liner. The red liner is a double-layer lead-free copper-plated glass liner. Copper plating is generally on the outer layer of the inner container, which will not contact with water and will basically not affect human health. However, asbestos is contained in the interlayer of the thermos bottle in the white liner, which is harmful to human health. Compared with the inner container of ordinary thermos, copper plating instead of asbestos will be healthier and have better insulation effect.
Compared with the inner container of ordinary thermos, copper plating instead of asbestos will be healthier and have better insulation effect.