Natural water contains a few substances (gases, oxygen and Carbon-dioxide, Sulphates, iron, Carbonates of Calcium and Magnesium) dissolved in it. This constituents make not only taste but also hardness to the water. When boiling the water, the dissolved gases are released and hardness is removed. Some insoluble substances such as carbonates and hydroxides are formed which get deposited on the surfaces and the bottom of the vessel as scales. This separation from water deprives its taste. |
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