Why are there condensation beads on the surface of the double-layer stainless steel water cup when it is filled with ice water?

Recently, I received a private message from a reader friend.The content is as follows: I newly purchased a beautiful double-layer stainless steel water cup, which is used for drinking cold drinks every day, but why does this double-layer water cup have water condensation on the surface of the water cup not long after it is filled with cold water?Confusing, may I ask what causes this?

First of all, I would like to thank my friends for paying attention to my article, and thank you for your trust.Then let's talk about why the double-layer stainless steel water cup will have water condensation on the surface of the cup not long after it is filled with cold water.

The editor mentioned in the previous article that the stainless steel double-layer thermos can keep both hot water and cold water warm.The principle of heat preservation is to remove the air between the double-layer shells through vacuuming technology to form a vacuum state to prevent temperature conduction.

Therefore, whether it is filled with hot water or cold water in the stainless steel double-layer thermos cup, the surface temperature of the water cup is the natural temperature, and will not change due to the temperature of the beverage in the cup.Therefore, the stainless steel thermos cup is filled with ice water, and the surface of the water cup will not cause water condensation due to low temperature conduction.

So why do the double-layer stainless steel water cups mentioned in the question of the readers still appear water condensation on the surface of the water cups not long after they are filled with cold water?This starts from the requirements of production quality and the finished product itself.

Since the finished product is a high-quality double-layer stainless steel thermos cup, it can play a good role in heat insulation, and there will be no condensation beads on the surface after it is filled with cold water.Then since condensation beads appear, it means that the water cup does not play the role of isolating temperature conduction.Then if readers and friends buy such a water cup, the editor recommends that you contact the merchant in time to provide product questions and ask the other party to provide return and exchange services.

But there is another situation, please read carefully and carefully to see if the double-layer water cup you purchased has a clear indication that it is a vacuum flask?There must be some friends who are a little confused, isn't the double-layer water cup vacuumed?Isn't it insulated?

Editor's answer: Yes, not all double-layer stainless steel water cups can be vacuumed, and not all double-layer stainless steel water cups have heat preservation function.Because some water cups are only designed to have a certain heat insulation effect, and some are not suitable for vacuuming in structural design, so please readers and friends to learn more about the product description.If the purchased product is non-vacuumed as the editor said, then discuss with the merchant to see if the other party is willing to cooperate with the exchange.

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.