What are the problems that bother consumers about thermos cups?

1. The problem of the thermos cup not keeping warm

The national standard requires a stainless steel thermos cup to have a water temperature of ≥ 40 degrees Celsius for 6 hours after 96°C hot water is put into the cup. If it reaches this standard, it will be an insulated cup with qualified thermal insulation performance. However, due to the influence of the shape and structure of the water cup, and the fact that some brands and businesses can amplify the insulation effect and change the production parameters during production, the insulation performance of the thermos cup has been greatly improved. This is the problem that troubles everyone. I have to say that this It is also a case of involution. As mentioned in the previous article, the more insulated the thermos cup is, the better it is not. Please check the previous article.

2. The problem of rust in the thermos cup

Simply put, there are two reasons for the rust of the thermos cup. One is the problem of the steel, which is not up to standard. The other is to use a thermos cup to hold liquids with high acidity and alkalinity for a long time. Consumers can review their living habits. If it is not the latter, there is a problem with the material of the water cup. This can be simply tested by using a magnet. The method is also described in detail in the previous article.

3. After using it for a period of time, the water cup will shake and there will be obvious noise inside.

Some consumers have only purchased it for a short period of time, while others have used the water cup for a long time before making abnormal noises. This phenomenon is caused by the shedding of the getter inside the water cup. Usually, the shedding of the getter will not affect the heat preservation of the water cup. performance.

4. The problem of paint peeling off or pattern peeling off on the surface of the water cup

After purchasing a water cup, some consumers discovered that the paint or pattern on the surface of the water cup would bulge on its own and then gradually fall off if there were no bumps, which greatly affected the appearance and ruined everyone’s mood when using it. If there are no bumps on the surface of the water cup, the paint and pattern peeling off is a quality problem. We have also described the reasons in detail in our previous article.