Chefman CUSTOM-TEMP KEEP WARM RJ11-18-CTI-UK User Manual page 16

CLEANING AND MAINTENANCE
DECALCIFYING
Due to minerals in water, deposits may form on the base of the kettle
and cause discolouration. To get the best performance from your
kettle, decalcify it from time to time. Frequency will depend on the
hardness of your water and how often you use the kettle. You can
either use a commercial descaler (following the package directions)
or use vinegar and water, and follow the directions below:
1. Fill the kettle with enough white vinegar to cover the bottom
by about 1.5 cm. Heat the vinegar to the boil.
2. Repeat this process with fresh vinegar until all deposits
are removed.
3. When the descaling process is complete, empty the kettle
and rinse it out several times with clean water.
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