What are the problems that plague consumers about the thermos cup?

1. The problem that the thermos cup does not keep insulated.

The national standard requires that the water temperature of the stainless steel vacuum flask should be ≥40°C for 6 hours after the hot water at 96°C is put into the cup.If it meets such a standard, a vacuum flask with extremely qualified thermal insulation performance.

However, due to the influence of the shape and structure of the water cup, and some brands and businesses can amplify the heat preservation effect and change the production parameters during production, the heat preservation performance of the vacuum cup is greatly improved.

This is the problem that bothers everyone, and I have to say that this is also a case of involution.As mentioned in the previous article, the thermos cup does not mean that the more insulated it is, the better. Please check the previous article.

2. The problem of rust in the vacuum flask

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

3. After using for a period of time, the shaking of the water cup will appear, and there will be a noticeable sound inside.

Some consumers didn't buy it for long, and some people used it for a long time, and the water cup appeared abnormal noise.The reason for this phenomenon is the shedding of the getter inside the water cup.Usually, the shedding of the getter will not affect the heat preservation performance of the water cup.

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

Some consumers find after buying a water cup that the paint or pattern on the surface of the water cup will bulge up and then gradually fall off without any bumps, which greatly affects the appearance and destroys the mood of using it.The paint and pattern peeling off without bumps on the surface of the water cup is a quality problem, and the reason for this is described in detail in the previous article.

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