This is because it’s a highly concentrated fruit acid, and as such citric acid is now a key item in my cleaning cupboard.

As well as being useful to clean your kettle, you can also use the leftover citric acid to remove toilet limescale and washing machine mould and limescale.

For this citric acid method, I start by unplugging my kettle and adding a tablespoon of the product to the appliance before adding water – just enough to cover the bottom quarter of the kettle.

I then allow the water to boil, which takes two minutes as I don’t add much water to the kettle.

As soon as the kettle had boiled, I lifted the lid and the limescale had all dissolved. Not a trace of limescale had been left behind.

I finish off by giving the kettle a good rinse out and the job’s done. Citric acid won’t leave an aftertaste, so there is no need to reboil the kettle again.

This time around my kettle hadn’t been descaled for over a month which shows just how incredible this product is at removing limescale.