How to evaluate the insulation performance of insulation cups?

Knowledge question in the insulation cup industry: How to evaluate the insulation performance of insulation cups?

With people's pursuit of a healthy diet, insulated cups have become a must-have for many people when they go out. The insulation performance of insulated cups is one of the most important indicators for consumers, but how to evaluate the insulation performance of insulated cups?
Firstly, we need to understand the insulation principle of the insulation cup. The insulation cup mainly consists of a shell, an inner liner, and a vacuum layer, among which the vacuum layer is the key to the insulation of the insulation cup. When hot water flows into the inner container through the gap between the shell and the vacuum layer, the vacuum layer can prevent the leakage of heat, thereby maintaining the water temperature inside the cup. Therefore, the vacuum degree of the vacuum layer is one of the important factors affecting the insulation performance of the insulation cup.
So, how to evaluate the vacuum level of the vacuum layer of the insulation cup? Generally speaking, the following methods can be used:
Sensory evaluation: The degree of water vapor inside the cup can be seen through the cup body. If obvious water vapor can be seen, it indicates that the vacuum level of the vacuum layer is insufficient and the insulation performance is poor.
Listen to the sound: Invert the insulated cup and gently tap the body of the cup to check for a clear and crisp sound. If the sound is dull, it indicates insufficient vacuum in the vacuum layer and poor insulation performance.
Weight evaluation: After filling the insulation cup with water, weigh the weight by hand. If the weight is heavy, it indicates that the insulation performance of the insulation cup is good.
In addition to the vacuum level of the vacuum layer, there are also other factors that can affect the insulation performance of the insulation cup, such as the sealing of the cup cover, the material of the inner liner, and so on. Therefore, when choosing insulation cups, it is also necessary to pay attention to the following points:
Choose a well-known brand: Famous brand insulated cups are relatively more guaranteed in terms of product quality and after-sales service.
Choose the appropriate size: The size of the insulation cup can also affect insulation performance. An oversized insulation cup may cause prolonged insulation time, while a small-sized insulation cup may not be able to fully insulate.
Attention to usage: When using the insulation cup, it should be careful not to fill it too full to avoid affecting the insulation effect. At the same time, do not leave the insulation cup in an environment with significant temperature changes for a long time, as this can also affect the insulation effect.
In summary, evaluating the insulation performance of insulation cups requires considering multiple factors, including the vacuum level of the vacuum layer, the sealing of the cup cover, the material of the inner liner, and so on. When choosing, it is necessary to choose a well-known brand, pay attention to the appropriate size, and pay attention to the usage method.