with hard water.

Limescale isn’t automatically a sign that the kettle is dangerous, but heavy buildup can affect the appliance’s performance and make cleaning more difficult.

Depending on the manufacturer’s instructions, regular descaling can help keep the kettle working efficiently.

Don’t use aggressive cleaning chemicals unless the manufacturer specifically says they are appropriate.

4. Kettles With Faulty Safety Features

Modern electric kettles commonly include safety features such as automatic shutoff and boil-dry protection.

These features exist for a reason.

If your kettle continues heating long after the water has boiled, fails to shut off, repeatedly overheats, or switches on when it shouldn’t, stop using it.

A malfunctioning appliance shouldn’t be treated as a minor inconvenience.

If a safety mechanism has failed, replacement is often the most practical solution.

What About the Material?

You may also have heard warnings about plastic, stainless steel, or glass kettles.

The material alone doesn’t tell