About the performance of vacuum thermos

Heat preservation performance:

  The vacuum cup is characterized by cooling and heat preservation. The vacuum cup with high vacuum rate can hold heat for up to 10 hours.

The working principle:

  Made of stainless steel inside and outside double layer, the use of welding technology to the liner and shell together, and then vacuum technology to the liner and shell interlayer of the air out to achieve the effect of vacuum insulation.