After my raw water is boiled, there is a lot of scale in the pot. Is drinking this water harmful to your health?

Scale can only represent the high content of calcium and magnesium ions, but it does not necessarily mean that the proportion of calcium and magnesium ions is unbalanced and will not cause direct harm to the body.

Carbonate, the main component of scale, will decompose when it enters the back of human body, and the part that cannot be decomposed will also be excreted with feces. In addition, drinking hard water with relatively high calcium and magnesium concentration for a long time is only a risk factor for the formation of lithiasis, and drinking hard water will definitely lead to lithiasis, so if it is safe to boil tap water, it will not lead to stones.

If the local groundwater is polluted without strict disinfection and filtration, other harmful substances such as iron and manganese and pollutants may precipitate together. The normal scale color should be white. If the scale color is red, it may be polluted.

When the scale is cemented, a large number of heavy metal ions will be attached. If the container is used to hold drinking water, there is a risk that heavy metal ions will dissolve too much in drinking water.

Extended data:

Formation of scale:

The tap water we drink comes from long-term stagnant groundwater and contains relatively more minerals such as calcium and magnesium salts, so the hardness of water quality will be relatively high. But if the water comes from rain, snow, surface water, etc. The water quality will be softer.

It is precisely because some water contains bicarbonate minerals such as calcium and magnesium salts, which can be dissolved in water without heating. Chemical changes will occur when heated and boiled, and precipitated substances which are insoluble in water, such as calcium carbonate and magnesium carbonate, will be attached to the kettle, which will become scale after a long time.

Scale insoluble in water is only relative. After water is heated, some precipitates will dissolve, thus bringing the heavy metal ions that form precipitates back to the water.

People's Daily Online-Can scale really cause lithiasis?

The scale of people's network is harmful to human health.

Baidu Encyclopedia-Scale