I recently received a private message from a reader friend. The content is as follows: I recently purchased a beautiful double-layered stainless steel water cup, which I use daily for drinking cold drinks. But why does this double-layered water cup not last long after being filled with cold water? Are there condensation beads on the surface of the water glass? This is confusing, what could be causing this?
As mentioned in the previous article, the stainless steel double-layer thermos cup can insulate both hot water and cold water. The principle of insulation is to use vacuum technology to remove the air between the double-layer shells, forming a vacuum state to prevent Due to the effect of temperature conduction, whether the stainless steel double-layer thermos cup is filled with hot or cold water, the surface temperature of the water cup is the natural ambient temperature and will not change due to the temperature of the drink in the cup. Therefore, if the stainless steel thermos cup is filled with ice water, the surface of the water cup will not cause water condensation due to low temperature conduction.
So as mentioned in the reader’s question, why does water condensation still appear on the surface of the double-layer stainless steel water cup not long after filling it with cold water? This starts from the requirements of production quality and finished product itself.
Since the finished product is a high-quality double-layered stainless steel thermos cup that can provide good heat insulation and will not cause condensation beads to appear on the surface after filling with cold water, then if condensation beads appear, it means that the water cup does not insulate temperature conduction. function, then if a reader friend buys such a water cup, the editor recommends that you contact the merchant in time to provide product issues and ask the other party to provide return and exchange services.
But there is another situation. Readers, please take a closer look at the double-layered water cup you purchased. Does it clearly indicate that it is a vacuum-proof thermos cup? Some friends must be a little confused. Isn’t the double-layered water bottle vacuumized or insulated? My answer: Yes, not all double-walled stainless steel water bottles will be vacuumed, and not all double-walled stainless steel water bottles have the heat preservation function, because some water bottles are only designed to provide a certain heat insulation effect. At the same time, some structural designs are not suitable for vacuuming process, so readers please read the product description in detail. If the product you purchase is non-vacuumable as I mentioned, then discuss it with the merchant to see if the other party is willing. Cooperated with the exchange.
Post time: Feb-03-2024