Drinking water boiled in a kettle for a long time is toxic and carcinogenic? Reminder: There are 3 points to pay attention to
It has been rumored before that more than half of 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, causing human poisoning and even cancer?
1. Why do Chinese people prefer to drink hot water?
Most people may have been nagged by their elders since childhood: drinking more hot water is good for the body. But foreigners basically do not drink hot water directly, unless they are making tea or coffee, they will boil a pot of hot water.
Why do Chinese people like to drink hot water?
Archaeologists have found that there are traces of smoke and fire on the bottom of pottery tens of thousands of years ago, indicating that Chinese people have been drinking hot water since ancient times . In the period of the Republic of China, Western bacteria theory was introduced into China, so the government at that time also encouraged the public to 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 an epidemic prevention measure.
The real "drinking hot water" is deeply rooted in the hearts of the people. After the founding of the People's Republic of China, the whole country launched a patriotic hygiene campaign. In terms of personal hygiene, the general public was called on to drink hot water and boiled water. In the 1950s, drinking hot water even went deep into kindergartens. The teacher guaranteed to feed the children hot water 3 times a day to help the children develop the habit of drinking hot water from an early age.
In this way, drinking hot water has become a unique "inheritance" of the Chinese.
2. Drinking water boiled in a kettle for a long time is toxic and carcinogenic?
Many families drink hot water and choose to use an electric kettle to boil the water, but it is said that the heavy metal manganese will not be released in the process of boiling water, and drinking hot water containing metal manganese 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 will not have the risk of exceeding the standard of manganese. Moreover, manganese is not a drug, but an essential trace element for the human body.
China conducted spot checks on stainless steel tableware and cooking utensils as early as 2012, and the results showed that stainless steel cooking utensils did release trace amounts of manganese, but it was far from the poisoning level.
3. 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 three 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 late-night snack. In order to save trouble, they like to use an electric kettle to directly brew tea, instant noodles, etc. However, it should be noted that some electric kettles stop heating by sensing the 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 the scale
The water used in daily life has a certain hardness. After hard water is boiled, calcium ions and magnesium ions will be precipitated, which will adhere to the kettle to form scale. If you want to remove the scale, you can pour a small amount of white vinegar and add water to boil and shake it gently; or use a soft cloth dampened with water to make a paste of baking soda, wipe the place with scale, and the scale can easily fall off.
3. Correct purchase
When buying a stainless steel kettle, try to use food-grade stainless steel such as 304 stainless steel and 316 stainless steel; when buying a glass electric kettle, look for the material of high borosilicate glass; for ceramic kettles, you must pay attention to the choice of glaze, and avoid buying colored ceramic glazes, which are prone to precipitation of toxic substances. Substances; buy a folding electric kettle and look for food-grade silicone. In short, when buying, pay attention to the material selected by regular manufacturers, and those with 3C certification will not step on the thunder.
The manganese element precipitated from the electric kettle is very limited. As long as it is a kettle produced by a regular manufacturer, everyone can use it without worry.
References:
[1] "The thermos cup has become the "secret weapon" of the Olympic champion. 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? 》.Lilac Doctor. 2017-02-13
[3] "Using this electric kettle to boil water, heavy metals exceed the standard, will drinking it cause cancer? I'm afraid after watching it for a while". Family Doctor. 2022-04-13
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