Granite Sink Care Guide

Daily care for your granite sink: Cleaning a granite sink is easy and uncomplicated. A little warm water, a non-abrasive scrubbing sponge and some washing liquid is all you need to remove stains, greasy marks and the usual signs of wear. Always ensure you dry your sink with a soft cotton or microfibre cloth after cleaning. We recommend wiping your sink dry everyday after use. This will help to prevent lime scale marks and will make sure your sink continues to look good for years to come.

You can also use the Blanco DailyClean+ spray which helps to remove limescale deposits from day-to-day use. Simply spray DailyClean+ on the area to be cleaned and leave it for a moment to take effect. Then wipe off with a damp cloth and dry with a microfibre cloth.

Removing metal abrasion: Granite sinks are extremely hard. However, sometimes pots might leave a metal abrasion on bright surfaces. Removing these dark lines is easy. ​Apply some cooking oil to a wet sponge on the soft side. Clean the sink with the soft side of the sponge, with circular movements. ​The mixture of oil and water releases the metal abrasion from the sink.​ Rinse your sink with clean water and dry it with a microfibre cloth afterwards.

Removing discolouration: If you go for a long time without cleaning your granite sink, limescale particles will gather on the surface. These deposits typically gather around the mixer tap and on the drainer, as dishes dry here and water droplets evaporate. While the deposited limescale is easy to spot against dark sinks, it can easily go unnoticed at first on light-coloured sinks. Only when the limescale becomes discoloured, for instance if the once-white limescale becomes the colour of a tea bag, does it become apparent. Granite itself is completely colour-fast – it is the limescale deposits that become discoloured.

If limescale deposits or stubborn discolouration are visible, use an acid-based cleaner to remove the limescale. Stubborn discolorations are stains fixed on limescale, by removing the limescale also the discoloration will disappear. ​For this, spray the sink sparingly with an acid-based cleaner and let it work for five minutes. Then clean your sink with a sponge, rinse it with water and rub the surface dry with a microfibre cloth. You can also use white vinegar which will remove even stubborn lime scale deposits.

Monthly deep cleaning: It is best to clean your granite sink every day, as described above, in order to prevent limescale from forming. This will help prevent discolouration, which is harder to remove. In addition, you should also give your sink a basic deep clean every couple of months in case limescale has formed despite these efforts.

To deep clean your sink you can use a heavy-duty detergent or our Blanco Activ Sachets. Specially adapted to granite, this powder loosens any stubborn dirt from your sink. Using it is easy. First close the outflow on your sink. Open the little sachet of powder and scatter the contents evenly around the sink bowl. Now fill your bowl with water at a temperature of at least 60 °C. Ideally, use water boiled in the kettle. Use a small measuring cup to scoop some of the solution out of the bowl and pour it over the drainer, too. Leave the Blanco Activ powder to work for at least two hours. Even better, prepare the mixture in the evening after you have used the bowl for the last time that day, and leave the solution to work overnight. After the time is up, drain the solution away. Rinse your sink down with clean water and rub all the damp surfaces dry with a microfibre cloth.

Alternatively, you can use white vinegar to deep clean your sink which can remove stubborn limescale deposits.

If you’re looking to get rid of stubborn dirt, do not use alkaline agents or drain cleaners. These substances are too aggressive and may damage the surface of the sink.

Note: Avoid aggressive cleaning agents, i.e. high corrosive or solvent based cleaning agents, as they may even attack hard, resistant granite surfaces.