Is the double-layer glass water bottle a thermos? How is the insulation effect?

When I visited a treasure website, the editor found that many merchants selling glass water cups will call double-layer glass water cups double-layer glass insulated cups.Some even show that the heat preservation time can reach more than 4 hours.For such a title, the editor will not name who it is, but if you pay attention to a certain treasure search, you can find a lot.

Is the double-layer glass water bottle a thermos? According to the definition of thermos cups in the international industry, double-layer glass water cups are not thermos cups, not thermos cups, not thermos cups.The important question is said three times. As for the heat preservation for more than 4 hours, it depends on how the other party steals the concept.If it is said that above zero degrees belong to the category of heat, then there seems to be no problem with what the other party said.The international industry defines a thermos cup, which requires that hot water at 96 degrees Celsius is poured into the cup, and the temperature in the cup is maintained at 55 ℃ for 6-8 hours after sealing.

How is the insulation effect?

After everyone knows this concept, you might as well do a test with the double-layer glass water cup you have at hand, and also pour in the boiling water that has just been boiled (the altitude environment is different, and the temperature of the boiling water that has just been boiled is mostly between 96°C-98°C).After sealing the lid tightly, observe whether the double-layer glass can meet the standard within the internationally defined time.

The answer must be impossible, and I can speak responsibly.Even if boiling water is poured into the double-layer glass water glass, the temperature in the water glass is almost around 55°C after about 2 hours.This is still tested at a natural temperature of 25°C.If the temperature is low in winter, after 2 hours, the temperature in the water cup is already the natural temperature, not to mention heat preservation, let alone more than 4 hours of heat preservation effect.

Some merchants are not convinced and say that the 4-hour heat preservation guarantees the low temperature.Ok, let's do another test, pour half room temperature water and half ice cubes into the double glass.Basically the resulting water glass is maintained at around zero degrees Celsius.After 10 minutes, you will find that there will be condensation beads on the outer wall of the glass water glass, which means that the water glass must not be insulated.

The surface of the insulated water cup will not form water condensation because the temperature inside the cup is lower than zero degrees Celsius.Of course, if you insist that the water in the cup is cold water in winter, it will still be at this temperature after 4 hours. If the outdoor temperature is lower, the water in the cup will be even lower.Well, I will share it here today. If you have any objections, you are welcome to refute me with experimental video data.

Dongguan Zhanyi Commodity Technology Co., Ltd. specializes in the production of metal cups, plastic cups, coffee cups, suction mug, lunch boxes, food jar, travel mugs, portable water bottles, sports bottles, home life desktop trash cans, thermos bottles, etc.These products are all our annual exports, and are recognized and loved by the US, Europe, Australia, Japan, South Korea, Taiwan, Hong Kong and other consumers. Support for small quantity order, fast customization.