The double wall mug is made of thick material, double layer anti-scalding design, it will not be hot. It can be sealed with a cover seal, the material is healthy, and there is no peculiar smell in contact with hot water; the double insulated mugs are made of healthy material, does not rust, and does not precipitate heavy metals ions, which can be in direct contact with food; the inner wall is finely polished, having a large diameter, is easy to clean, and has no dead ends to hide bacteria.
The vacuum layer of our double walled mugs can delay the heat dissipation of the water and other liquids in the container to achieve the purpose of heat preservation.