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English[en]
If you do not wash the electric kettle after frequent uses, sometimes it is observed that sediments of minerals will be left and accumulated in your electric kettle. Minerals left in your kettle are mainly calcium salts, trace amounts of which will not adversely affect the water quality or our health. This phenomenon is more common in other countries using hard water.
Chinese[zh]
假如你经常使用电热水壼,但用後并没有彻底清洗,过了一段时间,矿物质便会积聚及黏附在电热水壼内。 积聚在电热水壼内的矿物质主要是钙化物,这种现象在外国饮用硬水的地方比较普遍。 微量的钙化物不会对水质和健康构成影响。

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