The technology of stainless steel vacuum insulation was invented in Japan in the late 1970s. It is an innovation in the production technology of vacuum flasks for daily use. This technology applies stainless steel materials to the manufacture of vacuum insulated mugs. According to the principle of vacuum insulation, the container is used to block the heat transfer inside and outside, so the temperature in the container can be maintained for a long time.

Compared with traditional glass insulated containers, stainless steel vacuum insulated cups are a kind of emerging consumer products, which have the advantages of good insulation performance, safety and portability, energy saving and environmental protection, stylish appearance, and rich functions. The product categories include vacuum flasks, vacuum flasks, insulated jug flasks, stainless steel thermo lunch boxes and stew pots. It can be widely used in home, office, student, outdoor, driver, catering, gifts and other fields.

At present, stainless steel insulation cups are mainly divided into vacuum type stainless steel insulation cups and non-vacuum type stainless steel insulation cups. Among them, the vacuum-type stainless steel vacuum flask is the main type of stainless steel vacuum flask. In 2018, a total of 624,240 thousand vacuum-type stainless steel vacuum flasks were consumed worldwide. At present, the more common vacuum insulation cups on the market are double wall vacuum stainless steel water bottle, vacuum stainless steel water bottle and thermos vacuum insulated bottle.

In 2018, the output value of non-vacuum stainless steel vacuum flask was 516.49 million U.S. dollars, and the market share was 12.49%. It is predicted that by 2025, the output value of non-vacuum stainless steel vacuum flask will reach 645.00 million US dollars, which will occupy 11.62% of the market share. In short, the future prospects of the stainless thermos flask are still very good. More and more high-quality high grade vacuum flasks will enter our field of vision.