METAL OR PLASTIC KETTLES: Half fill the kettle with water and bring to the boil. Stand kettle in a bowl in the sink in case of excess fizzing. Add 1 measure of Kilrock-K and leave for 5 mins or until the fizzing stops. Pour away contents, reboil kettle and pour away and rinse before reuse. Wash off any spillage.
The original multi-purpose descaler
The unique biodegradable, phosphate-free formula has been descaling kettles for over 70 years: nothing performs like it!
Ideal for kettles, showerheads, coffee makers, WC pans and irons