Boiling is one of the oldest methods for getting safe drinking water and it is a widely practised household water treatment method used for water purification. The main purpose of boiling water is to kill germs that are present in it. However, while boiling water is a time-tested practice, it has its own limitations. Also, there are other water purification methods available that are more effective, easy, and convenient. When the water is boiled, it helps remove micro-organisms that can’t withstand high temperatures. But, if you think that the impurities and other chemicals are removed after boiling, you are wrong! To disinfect those invisible water-borne viruses and bacteria, make sure that the water is continuously boiled for a minimum of 20 minutes. If you boil it any less than that, then the water is not safe for drinking purposes. The process also does not dissolve impurities like lead, arsenic, magnesium and nitrates.