Why are kettles noisy




















Sure, when the water is boiling already we hear the familiar smooth sound of bubbles popping, but what about everything leading up to that point? In fact, the phenomenon is quite strange. From the moment we turn the kettle on, almost immediately we hear a subtle hissing sound that slowly gets louder and louder even if the water in the kettle appears absolutely still. Eventually it reaches a peak, at which point the violent hissing very quickly dies down and is replaced by the softer sound of boiling water.

So what causes this noise if the water appears still, and why is the noise loudest prior to boiling? The answer is more complicated than one might expect, but essentially the sound produced derives from the popping of two types of bubbles and covers quite a wide frequency range.

The first type of bubble that appears almost immediately is an air bubble. This is quite evident if you look inside your kettle when you turn it on, you will very quickly see little bubbles forming on the element and on the sides of the container. Eventually, these air bubbles will detach and float to the top where they will burst, creating sound. The second type of bubble is formed of vapor.

It has grown noisier each day with use. Some people have built up quite a tolerance for all the annoying sounds of a kettle. Apart from ruining my morning routine, the noise can also awaken everyone else.

Check them out. So, I did what I do best and found the best ways to make a kettle quiet. They are as listed below. You can use any of these methods in your home too. They may be from a long time ago, but tea cosies are still being used in homes and even restaurants for insulation purposes. They come in various forms and designs, mostly hand knitted.

Some have padded components that can be washed regularly. A tea cosy keeps the content of a teapot warm for some time. Thankfully, tea cosies can also help to make a kettle quieter. When placed on the kettle, it muffles the sounds and your water or electric tea kettle can boil for as long you want with little noise. I tried a large tea cosy that could cover my kettle.

Ensure that the tea cosy you use is thick or has insulation. You can also go all out on the design; tea cosies are beautiful and can add colour or character to your kitchen. Rubberized undercoating spray is mostly used in cars to prevent rust and limit the noise from the road.

When used on the electric kettle, a rubberized undercoating spray offers similar benefits. It would certainly fuse the electrics.

I use a 50's 60's style electric jug and it hardly makes any noise at all. Just have to watch it as has no auto cut off on the one I have, It also boils that quick. Then, why doesn't it make noise so loud when I boil with gas?

Is it because water is heated more rapidly? I suspect that heating on a gas hob is quieter because the heat from the gas ring is applied over a larger area on the base of the kettle and also spreads out as it is conducted through the metal to make contact with the water.

As a result the energy flow into the water is less focal, so there is probably a lower likelihood of bubbles of water vapour nucleating in few places around the element; this is what produces the cavitation sounds heard on an electric kettle. If any one cares to remember the old stile kettles with an exposed element were very quiet!

My kettle's noisy because i've been keeping my hampster in it while its cage is being redecorated. Skip to main content. Earth Science. Articles Answers to Science Questions Why are electric kettles so noisy? Why are electric kettles so noisy? Part of the show Science Questions and Answers.

Play Download. Question Why are electric kettles so noisy? Answer Chris Smith - Ah, yes my kettle is no exception and the reason that kettles are noisy, they make that sort of thumping and bashing noise as they boil and then the noise intensifies as they warm up and then it goes silent as they boil.

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