Four Criteria for Judging the Quality of Vacuum insulated thermos stainless steel Cup and Bottle
1. In accordance with local regulations and standards: refers to vacuum insulated thermos stainless steel cups and bottles materials to be safe and hygienic. The information of insulated thermos stainless steel vacuum cups and bottles is mainly stainless steel and plastic. It is necessary for plastic cover and apron to choose environmental protection information which is harmless to human body or does not pollute the environment. BPA harmful chemicals should never be added. The plastic used for cover is PP or Triton food grade plastic. The simple measuring method is to smell through nose, but not to have BPA harmful chemicals or odor.
The cup body of vacuum insulated thermos stainless steel cups and bottles should be stainless steel material. It needs acid and alkali resistance, corrosion resistance, manganese, phosphorus, cadmium and aluminium can not be overrun. Pure 304 stainless steel can meet this demand. At present, the market has a proper part of cups, using 200 stainless steel materials and even fake and inferior 200 series of stainless steel without magnetism, fake 304 stainless steel materials, 200 series of data corrosion rate is more than 100 times 304 stainless steel, especially fake 200 series of materials, manganese, phosphorus content is severe overexpenditure, and in the corrosion process. The water dissolved in the cup is very harmful to human body's physical and mental safety.
2. Insulation: Different countries will refer to different standards, and local standards need to be studied before shipment.
In China, according to the standard of QB/T 2332 insulated thermos stainless steel vacuum cup (pot) for heat preservation function, under the condition of room temperature 20 degrees, fill the cup with boiling water above 95 degrees, cover it for 6 hours, the water temperature of the cup with capacity less than 400 ML is not less than 42 degrees, and the water temperature of the cup with capacity greater than 400 ML is not less than 54 degrees. We can take part in boiling water during the experiment. After a few minutes, the middle part of the cup will not get hot.
3. Sealability: This is a point that people think more about when they choose to buy cups and bottless. Excellent sealing function is the key to choose vacuum insulated thermos stainless steel cups and bottles. Excellent vacuum insulated thermos stainless steel cups and bottles must be watertight.
4. Trustworthiness: It is necessary to know whether the related commodities come from the company specializing in making vacuum insulated thermos stainless steel cups and bottless. When the quality of the products is questionable, it is advisable to purchase the company commodities that can guarantee the rights and interests of consumers.