Why does electric kettle sound very loud when it boils?
May be related to the outside of the kettle and the size of the heater tube? Maybe the appearance of stainless steel is loud, right?
It doesn't matter whether it's an electric kettle or not, as long as it's a kettle.
The water temperature rises, the water molecule friction will gradually increase, a large number of water molecules of the friction friction noise, the kettle spout is generally small, and the space above the water inside the kettle, the sound is amplified, and when the water temperature reaches 100 degrees (an atmospheric pressure), the water is boiled, water from the liquid into a gas, generating water vapor, then there is no friction, water vapor from the water coming out of the bubble formation, but the sound becomes small.
