DO NOT use on kettles and urns which have an exposed heating element.

Water that has a high content of calcium, limescale and iron oxide is referred to as ‘hard water’. Calcium, limescale and iron oxide are natural occurring minerals in water. When water is heated, the mineral content leeches out and attaches itself to surfaces.

That is why regular use of CLR is an ideal solution to maintain a clean kettle.

STEP 1 Ensure kettle is unplugged and empty.

STEP 2: Using a measuring cup add 1 cup of tepid water to the kettle followed by 1 cup of CLR.

STEP 3: Swish the mixture in the kettle for 2 – 3 minutes.

STEP 4: Empty CLR and water solution into a container on stand by.

STEP 5: Rinse the kettle thoroughly with cold water and empty. Repeat 2-3 times.

An optional substitute for the second cold water rinse is to add 1 tablespoon of bicarbonate of soda to a cup of cold water and rinse your kettle thoroughly.

Bicarbonate of soda added to the cup of water neutralises any remaining active acid of CLR in your kettle after the first rinse.

For really tough calcium, limescale or surface rust stains, repeat the process above until your kettle is clean. The removal of calcium, limescale and rust stains is like peeling an onion, CLR actively dissolves the build-up, one layer at a time.

If there’s a tough stain that lingers, simply repeat as necessary. The CLR solution set aside can be re-applied until the build-up has been dissolved completely.