Is the inner wall of the thermos cup frosted or mirrored better
1. Thermal insulation effect The frosted inner wall and mirror surface of the thermos have little effect on insulation. The core of insulation is double-layer vacuum, not the smoothness of the inner wall. The difference between frosted and mirrored surfaces has almost no effect on the insulation time. Of course, if there are obvious quality […]
Should we choose seamless or seamless thermos cups
Choosing seamless insulated cups can provide better insulation, but insulated cups with seams are easier to clean. 1. Advantages of seamless insulated cups Seamless insulated cups are less prone to water leakage and have better insulation effects. Due to the absence of gaps, there are no air gaps inside the bottle, which can slow down […]
