Water is boiled in this hotel.

Material: stainless steel thermos must be made of food-grade 304 steel, and the inner container is preferably made of 304 steel, so as to ensure that the dissolved amount of heavy metals including lead in thermos used for holding water does not exceed the standard. Under the same process, cheap 20 1 stainless steel is used. Short-term use can not detect the difference of holding time, but 20 1 stainless steel has stable performance and is easy to corrode. After a period of use, the corrosion of steel layer leads to air leakage in vacuum layer, and the heat preservation effect is greatly reduced.

Vacuum insulation: vacuum can be divided into tailless vacuum and tailless vacuum. Tailless vacuum technology is advanced, with high vacuum degree and good effect. Due to technical differences, the effective capacity is more.

Appearance: The beautiful shape of the thermos cup will make people like it. Of course, it also depends on the technology of the thermos cup, the workmanship of the details, whether the interface will be exquisite, and whether the edge of the thermos cup will be smooth and flat. A beautifully made thermos cup represents the manufacturer's emphasis on product quality.

Look at the inner cover of the thermos cup with the inner cover. Generally made of PC, it smells tasteless and the plastic is bright and flat. The cover should be simple and clear, and there should be no sanitary blind area that can't be cleaned, so as to be clean and hygienic.

Choose from the caliber of the thermos cup: Generally speaking, under the same other conditions, the smaller the caliber of the thermos cup, the better the insulation effect, but usually such a small caliber is biased towards the small lady cup in design.

Hope to adopt, thank you.