IFB Essential descale washing machine powder is capable of removing the unwanted scales from your washing machine in order to give it more life. Descaling powder is also helps you to keep your clothes clean and results in reduction of electric bills. It helps Keeping your washing machine as good as new from the inside! Simply run a dummy cycle with Descaling powder added to water. It will remove any scale that may have formed, improving performance and leaving a nice fresh fragrance as well! How it works? One packet of descale powder added to the water for a dummy cycle run, this helps remove any scales that might have formed. There is a subtle fragrance after a dummy cycle with descale powder is run Should be once a month.