Minerals in tap water will deposit at the bottom of kettle, and become limescale, which may influence the usability of the kettle.

Please regularly clean the kettle with acidic substance. You can do so with this convenient method:

1. Fill the kettle with 3 cups of white vinegar, and then add water until it is over the deposit in the kettle.
2. Leave it to stand overnight.
3. Empty the solution from the kettle. Fill the kettle with clean water to the maximum level. Discard after boiling.
4. May repeat for several times until there is no taste or smell of vinegar.