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Will the stainless steel cup tea precipitate chromium?

  • Author:E-BON
  • Source:E-BON
  • Release on:2018-07-04

Many people like to take a stainless steel mug to make tea. However, it is said that the use of stainless steel cups of tea will cause the precipitation of heavy metal chromium in the cup, people will cause cancer after drinking. What is the truth?

Indeed, in some cases, stainless steel does corrode and incur local chromium dissolution. However, just talking about the precipitation, not talking about the dose, it is too calm to say that it is carcinogenic. In practice, in the normal use of the situation, the amount of chromium in the stainless steel cup that meets the national standard is extremely small, and there is no need to worry about it affecting human health.

At present, there are strict restrictions on the amount of chromium migration in stainless steel cups around the world. According to China's national regulations, the chromium migration of stainless steel vessels should not exceed 0.4 mg/dm2, and this migration rate is determined by boiling in 4% acetic acid solution for 30 minutes and then soaking for 24 hours.

In other words, you need to throw a piece of stainless steel in 4% acetic acid solution, and then boil for 30 minutes. After soaking for 24 hours, the amount of chromium that migrates per square decimeter should not exceed 0.4 mg.

And as long as the tea we usually drink is as weak as acidity, the corrosion of stainless steel is much less. In practice, the tea will not boil in the stainless steel cup for 30 minutes, nor will it soak for a long time. The response will be slower and the migration will be much lower. Therefore, you only need to use the stainless steel cup is a product that fits the specifications, a cup of tea not put too long, you do not have to worry about the chromium out of the standard.

Demand clarified that stainless steel products(Stainless steel rainbow spoon wholesalers china)are not suitable for temporary storage of foods, although it is not necessary to worry about daily use. It is particularly inappropriate to use salt, sauce, vinegar and other condiments. The storage of these food seasonings is still better than using qualified ceramics or glassware.

Some people can say that if I put it in a few days? But really put the tea for a few days, and it's probably the first thing to worry about!