1. Dissolve the contents of the sachet in 500ml (1 pint) of cold water - place kettle in sink and pour solution into the kettle.
2. When the solution stops fizzing, add more cold water until kettle is three-quarters full, and leave to stand overnight without replacing kettle lid.
3. Pour the solution away down the sink (take care not to spill any on outside of kettle).
4. Rinse kettle with cold water, fill and boil 0 pour boiled water away and rinse once more.

Metal Kettle Descaler

• Specially formulated for use in metal kettles.
• Removes heavy limescale deposits commonly associated with all-metal designs.

More specifically for kettles, why not try Oust Plastic Kettle Descaler or Oust Metal Kettle Descaler, for metal kettles, to remove the stubborn limescale deposits that kettles attract. The kettle will also work more efficiently, so it could also save on electricity.

Instructions