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Some stainless steel tableware is not necessarily the use of this, some use 200 series of stainless steel, the corrosion effect is worse. Corrosion products are the metals in stainless steel, such as chromium and manganese, if the amount is small, do not be too nervous, "the trace elements of the human body also need some heavy metals."
Extension: Good stainless steel is not afraid of slight wear
People with stainless steel tableware should have experience - this tableware has been used for a long time, and the surface of the washing brush will inevitably be worn. Once there is wear, is it easy to precipitate harmful heavy metals in contact with acidic substances?
"Food-grade stainless steel is corrosion-resistant both on the outside and inside." That for 304 stainless steel, slight wear is not a problem and does not affect the use.
As long as it is cleaned, it does not need to be replaced in a short time, unless there are many scratches on the surface, which is easy to accumulate dirty things, and it is not easy to wash off, then it is worth changing.
This is different from wooden and bamboo chopsticks, which are best replaced every six months.
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