What kind of cup is a stainless steel thermos?

Stainless steel insulated cups are containers that achieve their heat preservation function through a double-walled stainless steel structure combined with vacuum technology. They are divided into ordinary insulated cups (keeping drinks hot for less than 3 hours) and vacuum insulated cups (keeping drinks hot for more than 8 hours). Their heat preservation performance depends on the cup structure, material thickness, capacity, and manufacturing process. They are typically manufactured using vacuum brazing furnaces or exhaust platform technology, with vacuum brazing being a complex and costly process.

 

The cups feature a wide-mouth design for easy cleaning, and the strapped style makes them convenient to carry. Preheating or pre-cooling is necessary to improve the heat preservation effect, and highly corrosive or easily spoiled liquids such as carbonated beverages and milk should be avoided. Neutral detergent should be used for cleaning, and the cups should be kept dry for long-term storage. The products undergo antibacterial processing, and the airtightness can be tested by inverting the cup with water. When purchasing, pay attention to whether the material is food-grade plastic and avoid inferior materials with odors or burrs.

 

The production process of vacuum insulated cups includes the segmented processing and vacuum assembly of the outer shell and inner liner, involving welding, electrolysis, and polishing processes. New cups can have a plastic odor removed by soaking them in boiling water, milk, or orange peel. Avoid high-temperature fire sources, violent impacts, and microwave heating during use to prevent affecting the heat preservation performance or causing damage.