The mechanism of a Water Whistling kettle's sound is pretty simple. As the water in the kettle begins to boil, it releases steam. When it reaches this point, the spout on the side will spill hot water, causing a painful burn. The whistles themselves also create noises, but the mechanisms behind them are different.
A whistling kettle is the perfect way to get your tea or coffee brewing on the go. They use less energy than other types of kettles, so they can be a great addition to any kitchen. The main benefit of a whistling kettle is that you can use it on either gas or induction.