Is it right to clean the water cup with salt water?

Is it right to clean the water cup with salt water?

Answer: It is wrong.

After everyone buys a new stainless steel vacuum flask, they will thoroughly clean and disinfect the cup before use.There are many ways and methods, and some people will use high-temperature salt water soaking, thinking that disinfection will be more thorough. This method is obviously wrong.

High-temperature salt water can indeed play a role in disinfection and sterilization, but it is limited to materials that do not chemically react with salt water, such as glass.You can use the high-temperature salt water immersion method to clean and disinfect the water glass when you buy a glass water cup, but not stainless steel.

The editor recently started to play a short video. A friend left a message under a video, saying that the stainless steel vacuum flask he bought was soaked in high temperature salt water for a long time. After cleaning it later, I found that the inside of the inner tank seemed to be rusty. Asked yes. what reason? The above content of the editor is an explanation of this friend's message.Stainless steel is a metal product. Although it has good corrosion resistance, it is not absolutely anti-corrosion.

In particular, there are many kinds of stainless steel materials. At present, the globally recognized food-grade stainless steels are 304 stainless steel and 316 stainless steel. One of the methods of inspection of incoming materials is the salt spray test on stainless steel. Through the specified temperature and salt spray concentration and time, the salt spray reaction of the test material can be used for the subsequent production of stainless steel water cups if it reaches the standard. Otherwise, it cannot be used for subsequent production use.

Some friends said, don’t you also use the salt spray test?Then why can't we clean it with high temperature salt water? First of all, our factory’s laboratory is very standardized, testing in strict accordance with the industry’s international testing procedures, with clear regulations on time, temperature, and salt spray concentration. At the same time, there are also clear requirements for the results of the material testing, and what is considered a qualified product within a reasonable range.

The editor here is talking about 304 stainless steel and 316 stainless steel. So everyone does it according to their own judgment when operating the salt water cleaning daily. People often think that the higher the water temperature, the better, and the longer the time, the better, which breaks the normal test requirements. Secondly, it is not ruled out that the water cup that you buy is clearly marked with 304 stainless steel, but the final material does not meet the standard.

Because the same 304 or 316 stainless steel does not necessarily mean that it must be a qualified material, even some water cup companies use 201 stainless steel as 304 stainless steel. In this case, after consumers use high temperature salt water for disinfection and cleaning, the corrosion reaction of the material will be more obvious, so the editor recommends that you do not use high temperature salt water to clean new water cups. A new stainless steel water cup will be ultrasonically cleaned before it leaves the factory, so after you receive the water cup, you can gently clean it with warm water and a little detergent. After cleaning, it is enough to rinse it several times with water at a temperature of about 75°C.