Here are some common methods on the Internet:
1. After a period of use in aluminum pot and aluminum pot, there will be a thin layer of scale on the surface. Put the potato skin in, add a proper amount of water 10 minutes or so, and the scale will be removed.
2. vinegar descaling method If the kettle has water and alkali, you can put a few drops of vinegar in the water. After boiling, the alkali in the water can be removed.
3. Mask anti-scaling method Put a clean mask in the kettle. When boiling water, the scale will be absorbed by the mask, so it will not form scale in the kettle. After a while, change the mask.
4. Baking soda descaling method When boiling water in an aluminum pot, put a spoonful of baking soda and cook for a few minutes to remove the scale.
5. The pot for descaling eggs and boiling water has been used for a long time. If you cook eggs twice with it, the scale on the wall of the pot will be removed.
6. Anti-scaling of boiling sweet potatoes in a kettle Put half a pot of sweet potatoes in a new kettle, fill it with water and cook the sweet potatoes. Then boil the water, and the scale will not accumulate. Don't scrub the inner wall of the kettle after the sweet potato is cooked, otherwise it will lose its anti-scaling effect. For an old kettle full of scale, after the sweet potato is boiled 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.
7. Scale removal by thermal expansion and contraction. Put the empty kettle on the stove and burn it. When the water in the scale is dry, the scale at the bottom of the pot cracks or there is a "bang" at the bottom of the pot, remove the pot and quickly inject cold water, or quickly put the dried pot into cold water (don't let water enter the pot). The above two methods need to be repeated 2 ~ 3 times, and the scale at the bottom of the pot will fall off due to thermal expansion and cold contraction.