Drinking hot water for a long time is toxic and carcinogenic? Reminder: There are 3 points to pay attention to
Previously, there were rumors that more than half of the electric kettles on the market are made of high manganese steel. Once the manganese is precipitated, it is likely to cause damage to the nervous system. This also means that the electric kettle made of high manganese steel is actually a "poisonous kettle". Does this type of electric kettle really release toxic substances, which can cause human poisoning or even cancer?
1. Why do Chinese people prefer to drink hot water?
Most people may have been nagged by their elders since they were young: drinking more hot water is good for your health. But foreigners basically don't drink hot water directly, unless they are making tea or coffee, they will boil a pot of hot water.
Why do Chinese like to drink hot water?
Archaeologists have discovered that there are smoky traces on the bottom of pottery tens of thousands of years ago, indicating that Chinese people have been drinking hot water since ancient times . During the period of the Republic of China, Western bacteria were said to have been introduced into the country, so the government at that time also advocated that people drink hot water.
In 1932, a cholera epidemic broke out across the country. Due to the national conditions at that time, China could not build a direct drinking water system , so the government also strongly called for barbecue drinking as a preventive measure.
The real "drinking hot water" became popular among the people. After the founding of New China, the patriotic health campaign was launched nationwide. In terms of personal hygiene, the masses were called on to drink hot water and boiled water. In the 1950s, drinking hot water even went deep into kindergartens. Teachers ensured that children were fed hot water three times a day to help children develop the habit of drinking hot water since childhood.
In this way, drinking hot water has become a unique "inheritance" of Chinese people.
2. Is it poisonous and carcinogenic to drink hot water for a long time?
Many families drink hot water and choose to use electric kettles to boil the water. However, it is said that the heavy metal manganese will not be released during the boiling process, and drinking hot water containing manganese metal will pose a threat to health.
In this regard, Ruan Guangfeng, a master of nutrition and food safety from the Food and Nutrition Information Exchange Center , said that regular stainless steel products do not have the risk of manganese exceeding the standard. Moreover, manganese is not a drug, but an essential trace element for the human body.
As early as 2012, China conducted spot checks on stainless steel tableware and cooking utensils. The results showed that stainless steel cooking utensils would indeed precipitate trace amounts of manganese, but it was far from the level of poisoning.
Third, use the electric kettle correctly, keep in mind 3 points
When it comes to the things that really need to be paid attention to when using electric kettles, these 3 points are what consumers should pay attention to.
1. It is not recommended to cook food
Some people travel outdoors or want to cook a midnight snack. In order to save trouble, they like to use an electric kettle to directly cook tea and instant noodles. However, it should be noted that some electric kettles stop heating by sensing steam. When the food is blocked and the steam cannot be released, it may cause the electric kettle to continue to heat and easily damage the machine.
2. Clean up scale
The water used in daily life has a certain hardness. After boiling hard water, calcium ions and magnesium ions will be precipitated, which will adhere to the kettle to form scale. To remove the scale, you can pour a small amount of white vinegar into the water and boil it, then shake it gently; or use a soft cloth dipped in water to make a paste of baking soda, and wipe the scale, and the scale will fall off easily.
3. Choose correctly
When buying stainless steel kettles, try to use 304 stainless steel, 316 stainless steel and other food-grade stainless steel; when buying glass electric kettles, look for high borosilicate glass materials; ceramic kettles must pay attention to the selection of glazes, avoid buying colored ceramic glazes, which are easy to precipitate poisonous Substance; when buying a folding electric kettle, look for food-grade silicone. In short, when buying, pay attention to the selection of materials produced by regular manufacturers, and those with 3C certification will not step on thunder.
The manganese element precipitated by the electric kettle is very limited. As long as the kettle is produced by a regular manufacturer, everyone can use it with confidence without worry.
References:
[1] "The thermos cup has become the "secret weapon" of Olympic champions. Why do Chinese people like to drink hot water? ". Life Times. 2021-08-05
[2] "The manganese in the electric kettle exceeds the standard, and the boiled water cannot be drunk?" ".Dr. Lilac. 2017-02-13
[3] "Using this kind of electric kettle to boil water, heavy metals exceed the standard, will drinking it often cause cancer? Scared after watching for a while." Family Doctor. 2022-04-13
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