Many people make the mistake of believing that continuously boiling water will save energy once the kettle is already hot. However, boiling water nonstop causes the heating element of the electric kettle to become excessively hot, which leads to rapid burnout. It is much better to allow the kettle to rest between boiling sessions so that the heating element can cool down properly.
In many cases, if you boil water for an extended period, the thermal relay will automatically cut the power to the kettle, even if it remains plugged in and the indicator light is off. You will need to wait until the kettle cools down before you can use it again safely.
Boiling Water Beyond the Manufacturer’s Specified Levels
Boiling too much water can cause the boiling water to overflow from the kettle, spilling onto the heating element and potentially causing an electrical short circuit. Conversely, boiling too little water means the boiling water will evaporate more quickly, increasing the risk that the kettle could dry out. This dry boiling can lead to overheating, electric short circuits, and is a serious safety hazard.
Every electric kettle includes markings that indicate the maximum and minimum water levels required for safe boiling. These markings are usually horizontal lines measured in milliliters and can be easily found on the kettle body.
In addition to numerical markings, there are also “Max” and “Min” labels, representing the maximum and minimum water levels respectively. You can quickly observe these notations on the kettle’s exterior to adjust the water level accordingly before boiling.
Not Covering or Closing the Lid When Boiling Water

This mistake not only wastes electricity but also takes longer to bring the water to a boil. Electric kettles are designed with an automatic shut-off function that only activates when the lid is securely closed. Therefore, if the water is allowed to continue boiling without the lid properly closed, it poses a high risk of explosion and can severely damage the kettle.
Using the Electric Kettle for Cooking Food
Electric kettles are specifically designed to boil water and are not suitable for cooking tasks such as boiling eggs, making soup, or heating milk. Using the kettle for these other purposes can cause residue and impurities to accumulate inside, significantly shortening its lifespan. Moreover, the food prepared may not be fully cooked or heated evenly.
Using a Kettle with Obstructions
When the kettle has obstructions, its ability to absorb heat from the heating element is reduced, which results in a longer boiling time. Additionally, excessive buildup can damage the thermal sensor, causing the kettle to shut off prematurely, even before the water reaches boiling point.
For this reason, after using the kettle for some time, it is important to clean the inside thoroughly to remove any accumulation. This regular maintenance ensures safe operation and prolongs the durability of the kettle.
Pouring Out the Water Immediately After Boiling

After the water has boiled, it is common for people to pour out all the water from the kettle. This should be avoided because, even after turning off the power switch, the heating element continues to radiate heat.
If all the water is poured out immediately, the heating element can deteriorate quickly. The recommended practice is to leave about 20 ml of water inside the kettle, wait for it to cool down completely, and then pour out the remaining water.
Pouring All the Water Into Your Cup Immediately After Boiling
Pouring all the water from the kettle into your cup immediately after boiling is a common mistake. When the water reaches 100 degrees Celsius, the electric kettle automatically switches off, but the heating element inside still radiates heat.
Pouring all the water immediately can cause a sudden temperature change in the heating element, which shortens its lifespan.