7 of 7 people found the following review helpful
5.0 out of 5 stars
easy, inexpensive kettle descaler, 11 Jan. 2013
I use in conjunction with a 50p 'kettle protector' from Wilkinsons - 1 small teaspoon of citric acid in half a kettle of water once a week (leave for about 5 minutes, then rinse, obviously!) and the inside of the kettle stays pristine. Better than any proprietary brand of descaler I've found to date.