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Philips Support

How do I remove the white/brown spots on my Philips Avent sterilizer's heating plate?

Published on 2020-08-27
The white/brown spots are limescale. They build up in appliances as the residue of minerals naturally contained in water, which fail to evaporate when water is heated. The harder the water, the faster scale builds up. Althought it is not harmful as much, it is unsightly, hard to clean and can impair the operation of appliances or damage their components if allowed to build up. It is recommended to descale the sterilizer at least every 4 weeks to ensure it works efficiently.
Follow these instructions to descale.

Step by step instructions

1) Pour 90ml/3oz of white vinegar (5% acetic acid) and 30ml/1oz of water into the water reservoir.
2) Place the small basket on the b ase. Place the lid on top of the small basket.
3) SCF291: Press the power on button to switch on the appliance.
SCF293: Turn the on/off button to "Sterilize" mode. Then press it to switch on the appliance.
4) Let the appliance operate for 5 minutes, and then switch it off.
5) Empty the water reservior and rinse it thoroughly. If you still see traces of scale, remove it by sponge. Rinse again and wipe the base with a damp cloth.
6) Rinse the small basket and lid as well to remove vinegar solution.

Note: You can also use citric acid based descalers.

The information on this page applies to the following models: SCF291/01 .

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