Many people like to carry a thermos with them, reducing the use of paper cups and adding water. It was reported that a 50-year-old man used a thermos bottle of coffee every day for 20 years, and he died of dementia and lead poisoning. Later, it was found that a false alarm, the man actually died of aspiration pneumonia due to choking. But it is also curious, does improper use of thermos really dissolve harmful metal substances?
At present, most of the thermos on the market are 300 series stainless steel, of which 304 and 316 are the most common. 304 and 316 contain chromium and nickel components, which are resistant to corrosion and are stable and qualified thermos materials. Under normal use conditions, the 300 series stainless steel thermos is not easy to release metal, and the public does not need to worry too much about the risk of poisoning. When choosing a thermos, try to choose 300 series stainless steel as the first choice.
Usually 316 has higher nickel content and trace metal molybdenum, and the price will be higher than that of 304, and there is no absolute impact on durability. In addition, qualified thermos should be clearly marked with stainless steel, such as 304 or 316, and purchased from a reputable merchant, store or brand, which can better ensure quality and be more secure to use.
In addition, some people worry that drinking coffee, tea and other beverages in a thermos may release harmful substances. A thermos is the most suitable for warm water, but even other beverages such as tea, juice, milk, etc. are not easy to cause. The metal is released, and it will not cause much harm to health.
But what if there are scratches inside the thermos? At present, there is no research to confirm whether the release of metal in the thermos will affect health, but it is specially reminded that when the thermos is damaged or rusted, it means that the internal structure is damaged. For the sake of insurance, it is best to replace it as soon as possible.
In addition, in order to avoid damage to the thermos, there are also skills in cleaning. Cleaning the thermos is like cleaning stainless steel pots. Never use a sharp steel brush. Use a soft sponge to avoid damaging the surface coating and increasing the risk of metal exposure.
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