Have you ever noticed that electricDoes the kettle make a lot of noise during operation? Of course they noticed, because it is impossible not to notice it. It is possible that you even wondered why this was happening. At the same time, when the water is almost boiling, the sound becomes quieter than a few seconds after switching on. There is a very logical explanation for this, as well as why the kettle on the stove works differently and starts making noise only when the water has almost boiled.
First of all, let's decide how the electric kettle differs from the usual one, which our grandparents also boiled water on a gas stove.
At the heart of the electric kettle liesheating element. It is located at the bottom of the kettle itself and is heated by connecting the device to the electrical network. At the dawn of the appearance of electric kettles, the heating element had a different shape. For a long time, a variant similar to a boiler was used. It had the form of a spiral and coped well with its tasks. Then the time came for a flat heating element, and much has changed.
The design was simplified, and the water began to heat faster. Here lies the first and main cause of noise during boiling.
Why is the kettle making a noise?
Modern kettles have a fewkilowatts so that from the time we want a cup of hot tea to the moment we receive it, as little time as possible can pass. It was said above that the heating element is at the bottom, which means that the heating of water is uneven. That is, when the water in the lower part of the tank has already come into contact with a hot surface, the upper still remains cold.
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At this point, the gas in the water beginsexpand and turn into air bubbles. These bubbles begin to rise up. When they reach the cold layer, they begin to collapse by lowering the temperature of the gas in a colder liquid medium.
At this moment, the bubble makes a little noise. When there are many such bubbles, a barely audible clap turns into a hiss, and then into a hum, which is accompanied by the boiling of the teapot. A little later, this sound goes into a louder clap, which becomes a lot, but at the same time, they become quieter.
At this point, the water begins to boil completely and the bubbles go from the bottom to the surface, causing the water to boil. After some time, the kettle turns off and we can use boiling water.
Theoretically, avoid hissing while workinga kettle is possible. To do this, stir the water so that it warms up more evenly and there are no those same bubbles that collapse, rising up. Only if you want to try it, be careful. The steam is very hot and the appliance is plugged in.
Another way to get rid of noise is to choose a less powerful kettle or choose a weaker heating mode, if your model allows it.
You can also notice that the kettle on the stove soIt doesn’t make much noise and the main sound starts at the moment when the water is already boiling. At the same time, due to the expansion of the gas, the whistle located on the body (if any) starts to make a sound. This is due precisely to the fact that the water in the kettle on the stove heats up more slowly. And it does not produce situations when part of the water is already boiling, and part still remains cold.
Personally, boiling a teapot annoys me only in thatthe moment I turn it on late in the evening. The rest of the time, tolerating noise for a couple of minutes does not cause me any discomfort. I choose faster boiling with more noise, and not vice versa.
Does the noise of the kettle bother you or can it be tolerated if the water boils quickly?