Stay Cool Handle. Simply fill the kettle with water, place on the appropriate sized burner, and listening for a whistling to tell you that your water is ready. This kettle features a unique mechanism on the handle that will allow you to open and close the spout cover with a simple push of the button. With the stay cool handle and the spout button, this greatly reduces chance of burns. Easy one handed operation makes this kettle a great new addition to your kitchen!