Harm of scale How to remove scale?

Scale is a layer or a deposit deposited on the surface in contact with hard water. The most common form of scale is calcium carbonate, which is a natural component of chalk, limestone and marble. So, what are the hazards of scale? How to remove scale?

First, the harm of scale.

When the kettle is used for a long time, a thick layer of scale will grow on the inner wall. Usually, scale is mainly produced by the action of "hard water". We call water containing minerals such as calcium and magnesium salts "hard water". Rivers, lakes, wells and springs are all hard water. Tap water is obtained by filtering the water, so it is also hard water. After water is boiled, some water evaporates and insoluble calcium sulfate precipitates. The original dissolved calcium bicarbonate and magnesium bicarbonate are decomposed in boiling water, releasing carbon dioxide and becoming insoluble calcium carbonate and magnesium carbonate (which are the main components of limestone and dolomite). This is the origin of scale.

Scale is harmful to human body. Many people think that scale will only affect beauty. When boiling water precipitates, scale will not affect the taste; The scale in the thermos bottle can't be seen anyway, so it won't have any effect. Scale is originally the sediment of heavy metals, calcium salts, dust, germs and eggshells mixed in water, which is not only unsanitary, but also seriously affects people's health. According to chemical analysis, scale contains a lot of heavy metals. Facts have also proved that scale can not only cause various lithiasis, but also cause diseases of digestive system, nervous system, urinary system, hematopoietic system and circulatory system and cause aging. Long-term intake will cause heavy metal poisoning in human body, and many heavy metals will cause cancer in human organs.

Scale affects human health, and tartar and periodontitis are often caused by scale; Can kill people. Legionella still has no vaccine to prevent, and its scale is hidden. Every year, 2,000 to 3,000 people in France die from this pathogen. There are more hidden dangers in scale. Washing your face and bathing with water containing scale will form calcium-magnesium soap, which sticks to your face and skin like chewing gum, making it difficult to remove dirt. If dirt is not washed, it will block the opening of skin glands and form embolism, which will affect normal metabolism and make the skin shrink and age prematurely.

The generation of scale: mainly related to water quality. If the water quality is hard, the oxygen content in the water is insufficient, and the water molecules are unstable, the solubility of calcium and magnesium ions in the water will be reduced, and the precipitation will be intensified, thus forming scale. As long as the water temperature exceeds 60℃, especially in the north where the water quality is hard, there will definitely be scale, and there will be scale in daily kettles and boilers. The solution is to clean it regularly.

Second, how to remove scale

1, baking soda for descaling

When boiling water in an aluminum kettle, put a spoonful of baking soda. Cook for a few minutes. Scale will be removed immediately.

2, vinegar in addition to scale

If the kettle has water and alkali, can you put a few spoonfuls of vinegar in the water? After boiling, water and alkali can be removed.

3. Mask scale prevention

Put a clean mask in the kettle. When boiling water? Scale will be absorbed by the mask.

4, eggs in addition to scale

A kettle for boiling water? It is difficult to remove scale after long-term use. In this regard, you can use it to boil eggs twice. Will have the ideal effect.

5, potato skin descaling

After a period of use in aluminum pot or aluminum pot? There will be a thin layer of scale. Put the potato skins in. Add the right amount of water to boil. Boil for about 10 minutes and take it out.

6, thermal expansion and contraction method in addition to scale

Put the empty kettle on the stove to dry the water in the scale. When you see a crack in the bottom of the pot or a bang burning to the bottom of the pot? Remove the pot and quickly pour in cold water. Or wrap the handle and spout with a rag. Holding hands? Quickly put the boiled kettle into cold water (don't let water pour into the kettle). The above two methods need to be repeated 2 ~ 3 times. The scale at the bottom of the kettle falls off due to heat expansion and cold contraction.

7, kettle boiled sweet potato waterproof scale

There is half a pot of sweet potato in the new kettle. Fill it with water. Boil sweet potatoes. Boil the water later. It won't expand. Don't scrub the inner wall after boiling the sweet potato in the kettle. Otherwise, the anti-scaling effect will be lost. For an old kettle with scale, after boiling sweet potato 1 ~ 2 times by the above method, not only the original scale will gradually fall off, but also the scale can be prevented from accumulating again.

8. Putting a magnet in the kettle can remove the scale.

Put a magnet in the kettle. When boiling water, the thick scale at the bottom of the pot will crack on its own. This makes it easy to take out the scale.

The above is the harm of scale introduced by Bian Xiao. I hope it will help you. For more information about the hazards of scale, please continue to pay attention to Tuba rabbit decoration.

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