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Selection of stainless steel insulation cup

How to choose a thermos cup? What are the tips for purchasing stainless steel insulation cups? What are the selection strategies of stainless steel insulation cups? A good stainless steel insulation cup can accompany us through spring, summer, autumn and winter, because it can better maintain heat and cold. A good vacuum insulation cup can keep cold for more than 6 hours, but how to choose a good insulation cup?
Vacuum insulation cup is generally a water container made of stainless steel and vacuum layer. It has a lid on the top and is tightly sealed. The vacuum insulation layer can delay the heat dissipation of liquids such as water installed inside to achieve the purpose of heat preservation.
First of all, look at the appearance of the cup.
Check whether the surface of the inner and outer bladder is polished uniformly, and whether there are injuries and scratches;
Second, see whether the mouth welding is smooth and consistent, which is related to whether you feel comfortable when drinking water;
Thirdly, the poor quality of plastic parts will not only affect the service life, but also affect drinking water hygiene;
24. Check whether the internal seal is tight, whether the screw plug and the cup fit properly, whether the screw-in and screw-out are free, and whether there is water leakage.
Industry experts suggest that attention should be paid to the thermal insulation performance of the inner liner structure, the degree of sealing between the lid and the bottle body, and whether the material releases harmful substances. Specific identification can be made through three methods.
A liner thermal insulation identification This is the main technical index of the thermos cup. After filling with boiling water, tighten the stopper or the cap clockwise. After 2 to 3 minutes, touch the outer and lower parts of the cup with your hands. The obvious warming phenomenon on the upper part of the cup indicates that the liner has lost the vacuum degree and cannot achieve a good thermal insulation effect.
2. Identify the sealing performance. Fill a glass of water and invert it for four or five minutes, screw the lid tightly, place the cup flat on the table, or shake it a few times. If there is no leakage, the sealing performance is good; Whether the rotation of the lid and the cup mouth is flexible and there is a gap.
Identification of the environmental protection of three parts The environmental protection of plastic parts is also an issue worthy of attention. It can be identified by smell. If the cup is made of food-grade plastic, the odor is small, the surface is bright, no burrs, and the service life is not easy to age. Plastic or recycled plastic has a strong odor, dark color, many burrs, and plastic is easy to age and break.