You are probably guilty of reboiling the water every morning when you turn the kettle on for you morning cup of tea or coffee. Apparently, it’s a foolish routine that could be detrimental to your health.

The composition of water changes when boiled. This beneficially releases volatile compounds and gases, making boiled water a safe drink. But when ordinary water is over boiled or reboiled, the chemical compounds change for the worse. Instead of dissolving, dangerous substances accumulate, increasing the risk of consuming certain chemicals and harmful substances like nitrates, arsenic, and fluoride.

Healthy minerals may also turn for the worse when ‘amassed’: in large quantities, calcium salts, for instance, can lead to kidney stones and gallstones. 

Read more about the damaging effects of reboiled water.