How to Descale an Electric Kettle Naturally

The electric kettle is definitely one of the most popular home appliances in use today; it’s indispensable in homes, needed in offices, and extensively used even in outdoor recreation facilities. After a period of constant use, calcium, magnesium and salt, from water and other food particles could accumulate to form limescale around the inner surface of this kettle. Though the limescale is not harmful when ingested, it’s always an unpleasant sight. 

Descaling is one of the most efficient, less expensive and time-saving ways of keeping your kettles limescale free, properly cleaned and effectively functioning.

In this article, we exhaustively share the causes, elimination and prevention of limescale on your electric kettle through natural ways.

What is Descaling?

The total removal of limescale from the surface of a metal, especially from the inner surfaces of boilers and kettles.

What Is Limescale?

Limescale, which could also be called calcium scale, is most common in hard water. It is a hard, off-white chalky substance often found on the metallic parts of water-operated machinery. It is particularly common in equipment that involves heating such as boilers, electric kettles or heat transfer systems (such as heat exchangers). So it is only natural that these scales are found on the surfaces of your kettle.

 Hard water is known to be of utmost benefit to health. In fact, most mineral waters for sale contain minerals such as calcium and magnesium. These elements are good for your body as they have roles to play in the build-up of the body’s immune system.

 What Causes Limescale?

Limescale is caused by the accumulation of calcium and magnesium minerals in hard water. This hard water is formed when rainwater filters through rocks like chalk and limescale, picking up hard minerals along the way. Hard minerals that are not harmful to the human body.

Kettles get limescale because of a deposit of calcium carbonate and a residue left behind by hard water. When you heat up hard water at home, in your kettle, the minerals inside the hard water turn into limescale and cling to whatever they can, which is why they are mostly found on surfaces.

How to Get Rid of Scales Naturally

Here are some requirements needed to descale an electric kettle naturally:

  • 1 cup of Vinegar or lemon juice 
  • 1 tbsp baking soda (optional)
  • Cotton cloth (optional)

Steps in Descaling Your Electric Kettle

Depending on how thick the line scale is, 

  1. Put a half cup of vinegar or lemon juice into your kettle and wait for about 30 minutes. If the limescale is very thick, turn on the electric kettle, the vinegar or lemon juice would heat up and break up the limescale; the steam caused from boiling would help steam up the rest of the kettle. (Repeat this step for a couple of time at intervals if the limescale is really thick.)
  1. Allow to boil for some time, at least 2 to 3 minutes.
  2. Swish the kettle thoroughly before pouring out into the sink.

Tip: Drop 1 cup of baking soda into the sink before pouring out the vinegar, it helps clean the draining system.

  1. Rinse the kettle thoroughly with clean water.
  2. If your kettle is not perfectly clean, wet your cotton cloth a little, dip into baking soda and use to clean the limescale residue inside the kettle, the spout and edges, depending on the material of the kettle.
  3. You could go through the boiling once more to ensure that the kettle is completely clean. 

A ratio of 1:3 of vinegar to water is best. Leave it for up to 30 minutes and scrub the residue off before rinsing and wiping it off with a cotton cloth.

Some of the best limescale treatments are Bicarbonate of soda – when teamed with vinegar or lemon juice. Baking soda is known to produce a fizzing reaction that can break down almost anything, including limescale.


The descaling of an electric kettle is quite a minimal, yet an important requirement to meet in maintaining a clean household. Also, it helps save electricity because the presence of limescale in your kettle causes boiling to take a longer time. A clean kettle takes a shorter time for the water to boil, which also helps to save energy and electricity.

In this article, we have shared practical and readily available steps to take in descaling and maintaining an electric kettle.

Usually, scales grow on metal surfaces after a short period of time. It is only natural and normal to find them on your kettle because they are mostly formed as a result of residue from hard water. However, this practice should be repeated in a couple of weeks or once a month to maintain the cleanliness of your kettle. 

Frequently asked questions (FAQs)

What brings about the presence of limescale in your kettle?

Limescale in a kettle is caused by the continuous use of hard water which has calcium and magnesium residue which tends to leave scales on the surface of metals.

How do you know when your kettle has limescale?

The presence of limescale in your electric kettle is caused by hard water. To test if you have hard water, you could try these easy DIY steps of the soap lather test by putting a small amount of soap in a water container filled halfway with water and shake vigorously. If you have cloudy milky water and dull bubbles, it is most likely you have hard water. There’s no cause for alarm as you could easily descale your kettle efficiently with the steps given in this article. 

If your kettle has limescale, does it mean you are dirty or unkempt?

No, it doesn’t. having limescale in a kettle could be gross but this doesn’t mean you are a dirty person, as you could always try out these steps in this article.

How do you maintain a scale free kettle?

This may depend on the thickness of your limescale. However, there are practical steps that could be taken to ensure a limescale kettle. practical steps like the ones given in this article, which you can always practice from time to time to ensure and maintain a limescale-free scale.

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