Why Some Thermos Cups Are Not Good At Keeping Warm

Why some thermos cups are not good at keeping warm

Unconsciously, it has entered the cold winter. Drinking more hot water and warm water can warm the body and mind. Natural thermos cups have been sought after and loved by most health-care people, but why do some users respond that thermos cups suddenly stop when they are used? What about the insulation? What are the reasons for the poor insulation effect? Next, let Xiaobian introduce it to you.

poor sealing

If the water in the thermos is not hot, it is most likely due to poor sealing. After receiving the water in the thermos, check to see if there are gaps in the bottle cap or elsewhere. If the lid is not tightly closed, it will also cause the thermos to leak. The water gets hot soon.

cup leaking

There may be a problem with the material of the cup itself, and some thermos cups have defects in the craftsmanship. There may be pinhole-sized holes in the inner liner, which accelerates the heat transfer between the two walls of the cup, and the heat is quickly dissipated.

Insulation cup interlayer is filled with sand

Some merchants will put some sand in the interlayer of the thermos cup in order to make it shoddy. Such thermos cups are still very warm when they are bought. After a long time, the sand and the inner tank will rub, which will easily cause the thermos cup to rust, and the insulation effect will be reduced. Very bad.

not a mug

Some "insulation cups" came close to hear that there was no buzzing like a bee, put the thermos cup to the ear, and there was no humming sound in the thermos cup, which meant that the cup was not a thermos cup at all, then something like this The cup will definitely not keep warm.