Why Is There A Water Drop On The Surface Of The Stainless Steel Vacuum Flask After It Is Filled With Ice Water?

Some people have bought a vacuum flask, and when they first used it, ice water was filled inside, so that no condensation would form on the surface of the bottle at any time.

But after using it for a period of time, I suddenly found that when the water bottle was filled with ice water, water condensation began to appear on the surface of the water bottle, especially when put it in the bag, I didn’t notice it. The water overflowed, and it wetted the file, causing serious damage electronic product.

This can indicate that the thermos cup has no heat preservation, and the vacuum layer between the double-layer stainless steel is destroyed. Since it can not achieve the temperature insulation effect, it is the same as an ordinary single-layer water cup.

The surface temperature of the water cup is relatively low, and the moisture in the air will condense into water droplets to be adsorbed on the surface of the water cup when it is cold.

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