No matter what kind of cup is bad quality, it will endanger the safety of the user during the use process, so don't make up your mind because of the good shape of the stainless steel vacuum flask. So how do you know that the quality of the mug is good? The manufacturer says the four rules for the selection of the mug:

1. Hygiene: It means that the raw materials of the thermos cup should be healthy and hygienic. The material of the vacuum flask is mainly stainless steel and plastic. The plastic cover and the apron must be made of environmentally friendly materials that are harmless to the human body or do not pollute the environment. Never add BPA harmful chemicals. The plastic used for the cover is PP food grade plastic. The simple measurement method is to smell with the nose, and there is no smell or smell.

2. heat preservation: according to the light industry standard (QB/T2332) stainless steel vacuum cup (pot) of the insulation performance of the standard: at room temperature of 20 degrees, fill the cup with more than 95 degrees of boiling water, cover After 6 hours, the cup water temperature of less than 400 ML is not less than 42 degrees, and the cup water temperature of more than 400 ML is not less than 54 degrees.

3. sealing: This is a lot of people to consider in the purchase of insulation cups. Excellent sealing performance is the key to the purchase of insulation cups. Excellent insulation cups must be dripped.

4. Reliability: It is necessary to know whether the relevant products are from the enterprises that specialize in manufacturing the insulation cups. When the quality problems of the products occur, whether they can obtain after-sales service or exchange in time, it is wise to purchase enterprise products that can protect consumers' rights and interests.

So when you choose, you can do some simple tests in this way, in order to know whether the cup we are using is good or bad in quality.