Philips Support

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

Published on 30 November 2022
The white/brown spots are limescale. They build up in appliances as the residue of minerals that are naturally contained in water, which fail to evaporate when water is heated. The harder the water, the faster scale builds up. Although it is not harmful as such, 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 steriliser at least every 2 weeks to ensure that it works efficiently. Follow the instructions below on how to properly descale your device.

Step by step instructions

  1. Pour 12 ml/0.5 oz of white vinegar (5% acetic acid) and 120 ml/4.5 oz of water into the water reservoir.
  2. Wait for 6 hours or overnight for best results, or until all the limescale has dissolved.
  3. Empty the water reservoir and rinse it thoroughly.
  4. If you still see traces of scale, remove it by sponge. Rinse again and wipe the base with a damp cloth.
Note: Use only citric acid-based descalers and avoid all other types.

The information on this page applies to the following models: SCF291/01 , SCF293/01 .

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