The cleaner then added: “Your kettle will look brand new in just five minutes.”

She showed viewers the state of her kettle beforehand, and the base was completely covered in limescale.

Limescale is a hard, chalky substance primarily composed of calcium carbonate, a mineral commonly found in rocks and seashells. It's off-white, but can also be grey, pink or reddish-brown in some cases.

If you live in a hard water area, you'll notice that limescale builds up in your appliances quite quickly. This is because your water supply contains large amounts of calcium and magnesium, which build up inside your kettle and form a scaly coating if left untreated.

For this method, start by filling up your kettle no more than halfway. The more water you add in the more citric acid you will need.

Next, add two tablespoons of citric acid to the kettle before putting the appliance on to boil.

Then leave the citric acid water to settle for a few minutes before pouring it away. Your kettle should now be free of any limescale stains.

The cleaning enthusiast showed the camera the after results, and there was no limescale in sight.

Citric acid is a great addition to your list of natural cleaning ingredients. Its low pH makes it very acidic, which is good for removing limescale, rust, and other minerals.

It’s also useful for killing mould and mildew and can be used as a preservative.