对饮水来说，并非越纯越好，水中的无机元素是以溶解的离子形式，易被机体吸收，因此，饮水是人们矿物质的重要摄取途径。纯净水含很少或不含矿物质，过去主要用于热电厂锅炉、电子工业洗涤、集成电路板等。
For drinking water, it is not the purer the better. The inorganic elements in the water are in the form of dissolved ions, which are easily absorbed by the body. Therefore, drinking water is an important way of mineral intake for people. Pure water contains little or no minerals, which used to be mainly used in thermal power plant boilers, electronic industry washing, integrated circuit boards, etc.