Electrical safety
Do not overfill an electric kettle
Keep water at or below the marked maximum level. Remove excess water before switching on and boil separate batches if needed.
Last reviewed: 2026-09-20
Why it matters
An overfilled kettle can eject boiling water through its spout or lid.
Wrong action
Filling right up to the opening to boil more water at once.
Correct action
Keep water at or below the marked maximum level.
What to do
- Find the maximum water mark before filling the kettle.
- Keep water at or below the marked maximum level.
- Remove excess water before switching on and boil separate batches if needed.
If something happens
For serious injury, unconsciousness or difficulty breathing, keep yourself safe, call 999 and follow the operator.
Sources and review
- Electrical and Mechanical Services Department — EMSD: Household Electrical Safety Handbook sections 2.3.8-2.3.20
Last reviewed: 2026-09-20
This page provides general home-safety information and does not replace medical, legal, electrical, or other professional advice.