Electric kettle safety: Risks of heavy metal leaching and improper use

Improper use of electric kettles can pose significant health risks beyond common dangers like burns or electrical fires. Using low-quality materials or incorrect boiling habits can lead to the consumption of toxins.

Key risks include using kettles made from substandard materials rather than food-grade 304 or 316 stainless steel. Such materials can leach heavy metals like lead and cadmium into the water, which may accumulate in the body and damage the liver, kidneys, and digestive system over time.

Additionally, re-boiling water multiple times or leaving water in the kettle overnight can increase the concentration of impurities and bacteria. To maintain safety, it is recommended to use water immediately after boiling and to clean scale buildup regularly.