Regular descaling is part of cleaning the baby bottle sterilizer. This is the only way to ensure that the bottles can also be reliably sterilized. The same home remedies as using a kettle can help descale. You inject a little less water than indicated in the device, and then add a tablespoon of vinegar. When the water evaporates, this will dissolve unwanted scale deposits. After that, all you have to do is to let the equipment cool down and wipe it with a clean cloth.