Which quality problems of stainless steel thermos bottles are considered unqualified products when they leave the factory?

Hello everyone, "Dong Dong Talk Cup" is here. Thermos cups are a very common commodity in our daily lives, and their quality directly affects the consumer's experience. Some friends have found some problems with the newly purchased thermos cups. http://www.zhanyict.com/en/ProductsDetail-VB-10501.htmlWhile they are troubled, they also wonder why thermos cups with quality problems are sold on the market. Today, the editor will talk to friends about which quality problems of stainless steel thermos cups are considered unqualified products when they leave the factory? Which problems are within the scope of reasonable quality and can be sold from the factory.

First of all, let me talk about the quality problems of unqualified products:

The thermal insulation performance does not meet the standard. The core function of a thermos bottle is to keep warm. http://www.zhanyict.com/en/ProductsDetail-VB-10501.htmlIf the thermal insulation effect of the product in standard testing is far lower than the time marked in the product manual, for example, it is marked as being able to keep warm for 12 hours, but in reality it can only keep warm for 5-6 hours or even shorter, such a product should be judged as unqualified and cannot be sold.

Regarding materials, stainless steel thermos cups should be made of food-grade stainless steel. If the materials used have excessive heavy metals or do not meet food safety standards, such as using non-304 or 316 stainless steel materials, http://www.zhanyict.com/en/ProductsDetail-VB-10501.htmlor using toxic coatings, these should be regarded as unqualified products and must not be sold on the market.

Structural defects: If the thermos cup leaks, the lid is not tight or is easy to fall off, this will not only affect its use but may also cause safety problems, such as burns caused by accidental splashing of hot water. http://www.zhanyict.com/en/ProductsDetail-VB-10501.htmlTherefore, it should also be identified as an unqualified product. Some of these cups with potential design safety hazards should also be responsibly tested comprehensively and should not be put on the market if they fail the safety test.

Serious defects in appearance, such as obvious cracks, dents or severe scratches on the thermos, may affect the structural integrity and safety of the thermos and should also be judged as unqualified.

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