Hard water is water that contains calcium or magnesium mineral ions often in the form of carbonate. These ions do not pose any health threat, but they can engage in reactions that leave insoluble mineral deposits. Hard water mineral deposits, or scaling, is the precipitation of minerals which form lime scale.
“I love this kettle. It’s made of stainless steel rather than plastic if that is a concern to you at all. My only slight complaint with it is that the beep when it’s done is very…”
“https://a.co/d/hjcnNVd
Cosori Electric Gooseneck Kettle - temp control is non-digital, so it will hopefully last longer (simpler design is often better for longevity).”