vacuum flask

Harness the Power of Insulation with a Vacuum Flask Indulge in the convenience and efficiency of a vacuum flask, a testament to the art of thermal insulation. Its double-walled construction, separated by a vacuum, effectively prevents heat transfer, preserving the ideal temperature of your beverages and delicacies for extended periods. Whether you’re sipping on a

A high-quality insulated cup vacuum flask should try to prevent the transfer of these three types of heat and keep the liquid inside warm. Make the inner liner of the thermos cup into a double-layer structure, and vacuum it in the middle to reduce heat conduction; Then add a stopper at the mouth of the