Remove limescale in the following ways:
1, the two eggshells slightly broken, into the bottle, and then fill half a teapot of cool water, plug the cork and hold down a hand, thumb and other fingers holding the neck of the bottle, the other hand to hold the bottom of the bottle, up and down and left and right rotating shake. After about 20 seconds, remove the cork, pour out the eggshells, and rinse them twice with water.
2. Put some confetti in the bottle, then pour in warm salt water and gently shake it for a while to remove the limescale.
3, can be poured into the concentration of 1% of baking soda about 500 grams of water, or vinegar heating into the bottle, gently shaking, scale can be removed.
4, take 200 grams of dilute hydrochloric acid put in the bottle after soaking for a while, and then shake can be removed from the bottle of scale.
5, with the water to cook noodles poured into the bottle, shaking a few minutes after pouring, and then rinse with water can be clean.
6, 250 grams of vinegar, hot water bottle into the hot water bottle, soak for a few hours, and then up and down, left and right shaking, bottle scale will fall off.
7, take some sunny leaves or pumpkin leaves cut into 3 cm to 4 cm square size pieces, into the bottle, and then add a little cold water, gently shake the bottle of warm water a few times, and then wash with water.
Expanded:
The reasons for the formation of limescale:
1, mainly related to water quality. If the water is hard, the water will be entrapped with calcium sulfate, which is not easy to dissolve the material and like calcium bicarbonate, magnesium bicarbonate, which has been dissolved some of the material. Minerals in water are mainly calcium ions and magnesium ions, calcium and magnesium is the main cause of scale.
2, calcium sulfate due to the temperature of the water to reduce the solubility will remain at the bottom of the pot. Calcium bicarbonate, magnesium bicarbonate, these substances are thermally decomposed to generate calcium carbonate and magnesium carbonate and other insoluble substances, will also remain at the bottom of the pot. Calcium carbonate is basically insoluble in water dissolved in acid, and calcium sulfate, calcium carbonate and magnesium carbonate are white precipitates, similar in form, mixed together for a long time, it becomes scale.
References:
Life Tip: What's the deal with limescale? Where does it come from? -Xinhua Jiangxi