Insulation products from the material divided into glass vacuum insulated container and stainless steel vacuum heat preservation container two kinds, the former common thermos, insulated lunchbox, glass tank vacuum cup, etc., which are mainly stainless steel vacuum cup. Regardless of the small mouth, mouth, portable, desktop type, method of choose and buy has similarities, specific alternative products according to the specific situation a little bit. Regarding the stainless steel vacuum cup and give a brief introduction of selection of the vacuum flask glass.

Stainless steel vacuum cup identification can adopt the following methods:

Simple identification method: (1) properties of insulation in the boiling water in a thermos flask clockwise to tighten the cork or lid for 2-3 minutes after touch cup outside surface, if the cup (pot) has obvious phenomenon of warm, especially the lower part of the cup body fever, explain product has lost its vacuum degree, no