If you're speaking of an electric water kettle, my advice is throw it out. At least where I live (Germany) you can buy good quality electric water kettles with

If you're speaking of an electric water kettle, my advice is throw it out. At least where I live (Germany) you can buy good quality electric water kettles with seamless stainless steel container for well under €50,— (I bought mine a quarter of a century ago for €25,—), so there's very little incentive to save money. I once had an impossibly cheap water kettle with open heating coils. That thing not only smelled of plastics but the water was ruined, too. Add to that that open heating coils have a reputation of shedding nickel into the water. Just say no.