Constantly boiling water | July 3, 2025

Many people make the mistake of believing that they’re saving energy by constantly boiling water even when the kettle is already hot. Constantly boiling water overheats the kettle’s heating element, leading to rapid burnout. It’s best to let the kettle rest between boilings to allow the heating element to cool down.

If you boil water for an extended period of time, the thermal relay will often automatically cut off the power to the kettle, even if it’s plugged in and the indicator light is off. You’ll need to wait a while for the kettle to cool down before you can use it again.

Boiling water beyond the amount specified by the manufacturer
If you boil too much water, the boiling water can overflow from the kettle, flow onto the heating element, and cause an electrical short circuit. Conversely, if you boil too little water, the boiling water will evaporate more quickly, creating the risk of the kettle running dry and causing overheating and electrical short circuits, which can be very dangerous.

Every kettle has markings for the maximum and minimum water levels needed for boiling. These markings are usually horizontal lines and are measured in milliliters. In addition to the numerical markings, there are also “Max” and “Min” labels (which indicate the maximum and minimum fill levels). You can easily identify these markings on the kettle body and adjust the water level accordingly.

Do not cover or close the lid when boiling water

This error not only wastes electricity but also takes longer to boil water. Kettles are equipped with an automatic shut-off feature that only activates when the kettle lid is securely closed. Therefore, if the boiling time is not interrupted, there is a high risk of explosion and damage to the kettle.

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