Vacuum cup or vacuum flask, which one should I choose?
In autumn, everyone loves to drink water with stainless steel water bottle or stainless steel drinking cups. Different styles of insulated tumbler have different quality, and the duration of heat preservation is different. How should I ensure that the liquid stays at room temperature? What is the function of the vacuum cup and the vacuum flask? How should I choose? The difference between ordinary vacuum flask and vacuum flask Different materials Ordinary vacuum flasks have a variety of materials, including ceramic, stainless steel, plastic, purple sand and glass. The material of the vacuum insulation cup is mainly stainless steel and vacuum layer. The vacuum insulation layer can effectively delay the heat dissipation time of the liquid inside the vacuum flask, which is the main reason why the vacuum flask can achieve the thermal insulation effect. Different price The ordinary thermos mugs sold on the market only have the effect of heat insulation. The most comm...