To clean an electric kettle, unplug it, fill it with equal parts water and white vinegar (or a tablespoon of citric acid in water), boil it once, and let it sit for 20 to 30 minutes. Then pour it out, scrub any leftover scale with a soft brush, and boil and discard plain water two or three times. That removes the white or brown limescale that builds up inside, and it takes under an hour.
This guide covers how to clean a kettle inside and out, how to descale a kettle with ingredients you already have, how to clear the smell, and how to stop limescale from coming back. It suits any electric kettle, including a tea kettle used every morning.
Why does limescale build up inside a kettle?
Much of the tap and borewell water in India is hard, which means it carries dissolved calcium and magnesium. When you boil the water, those minerals separate out and stick to the heating plate and walls as a chalky white, grey or brownish crust. That crust is limescale.
It is not dangerous to health in small amounts, but it is worth removing. Scale slows down boiling, so the kettle uses more electricity and takes longer. It can leave white flakes floating in your tea and give water a flat taste. Over time, a thick layer can also strain the heating element.
You will know it is time to clean your kettle when you see white flakes, a rough crust on the bottom, a metallic or stale smell, or water that takes visibly longer to boil.
How often should you clean an electric kettle?
|
Water at your home |
Descale |
Wipe the outside |
|
Soft or filtered (RO) water |
Every 2 to 3 months |
Every few days |
|
Mildly hard tap water |
Once a month |
Every few days |
|
Hard or borewell water |
Every 2 to 3 weeks |
Every few days |
If you see scale before the date comes round, clean the kettle then. A thin layer comes off easily, and a thick one needs more soaking time.
Before you start: safety and checks
• Unplug the kettle and let it cool completely before you clean it.
• Never dip the kettle or its base in water. The base holds the electrical connection, so wipe it only with a barely damp cloth.
• Read the manual. It tells you the material of the inner body and anything to avoid. Our kettle is built with a cool touch outer body, so keep soaking and scrubbing to the inside and wipe the outside only.
• Do not use bleach, harsh cleaners or strong chemicals. They are hard to rinse out of a vessel you drink from.
• Never mix cleaning ingredients. Use vinegar, citric acid or baking soda one at a time, not together.
How to descale an electric kettle with vinegar
White vinegar is the most popular method, because most kitchens already have it.
• Fill the kettle halfway with water, then add white vinegar to fill it up to the max line, so it is about half vinegar and half water. For light scale, one part vinegar to three parts water is enough.
• Bring it to a boil, switch it off and let it sit for 20 to 30 minutes. For thick scale, leave it for an hour.
• Pour out the liquid and use a soft brush or sponge to loosen the leftover scale. Do not use steel wool or a scouring pad.
• Fill the kettle with plain water, boil and discard it. Repeat two or three times until the vinegar smell is gone.
How to clean a kettle with citric acid or lemon
Citric acid is the gentler choice if you dislike the smell of vinegar. It is sold as "nimbu ka phool" or citric acid powder in most grocery shops.
• Fill the kettle with water to about three quarters.
• Add one tablespoon of citric acid powder, or the juice of one or two lemons, and stir.
• Boil, switch off, and let it soak for 20 to 30 minutes.
• Pour out, brush lightly, rinse, then boil plain water once and discard it.
Can you use baking soda?
Baking soda is good for stains, smell and light residue, but it is weak against hard limescale. Add one or two tablespoons to a half-filled kettle, boil, and leave it for 10 minutes. Once the kettle cools, scrub with a soft brush, then rinse well. For thick white scale, use vinegar or citric acid instead, and remember not to mix them with baking soda in the same go.
Which descaling method is best?
|
Method |
Best for |
Soak time |
Things to know |
|
White vinegar |
Medium to heavy scale |
20 to 60 minutes |
Strong smell, needs extra rinse boils |
|
Citric acid |
Medium to heavy scale |
20 to 30 minutes |
Mild smell, rinses easily |
|
Lemon juice |
Light scale |
20 to 30 minutes |
Pleasant smell, may be weaker |
|
Baking soda |
Stains, smell, light residue |
10 minutes |
Not strong enough for hard scale |
How to wash an electric kettle on the outside and under the lid
• Outside body: Wipe with a soft damp cloth and a drop of mild dish soap, then dry with a clean cloth. Keep soap away from the inside.
• Lid and spout: Wipe the lid, its underside and the spout. Use a cotton bud around the hinge and the spout opening, where residue hides.
• Spout filter: If your kettle has a mesh filter, take it out if it is removable and rinse it under running water, using a soft brush. If scale has caught in it, soak it in the vinegar or citric acid solution.
• Base and cord: Wipe with a barely damp cloth, never wet, and dry fully before you plug in.
How to get the smell out of a kettle
A plastic or stale smell is common in new kettles and kettles used rarely. For a new one, fill it with water and boil, discard, and repeat two or three times before first use. For an older kettle, a citric acid or lemon soak usually clears the smell. If a vinegar smell lingers, boil plain water and discard it once more.
How to prevent limescale
• Use filtered water if your home has a water purifier, as it has fewer minerals.
• Boil only the water you need, and empty the kettle after use instead of leaving old water in it.
• Leave the lid open for a while after use so the inside dries.
• Wipe the inside with a soft cloth when it has cooled, before scale hardens.
• Descale on a schedule, using the table above.
When should you replace the kettle?
Cleaning cannot fix a cracked body, a loose or damaged lid, a damaged cord or plug, a kettle that leaks, or a base that has been wet. If your kettle has any of these, stop using it and replace it. If you are choosing a new one, browse our electric kettles . Our 1.5L Kettle 1650 Watts with a Cool Touch Body is priced at ₹1,799. The cool touch body is safer to handle, and 1650W brings a full 1.5L to the boil quickly. For more ideas on getting the most out of your kettle every day, read our guide to 7 unique ways to use an electric kettle.
FAQs
Q: Is it safe to drink water from a kettle with limescale?
A: In small amounts, limescale is made of minerals found in hard water and is not considered harmful. It still affects taste and heating, and it can break into flakes in your tea, so it is best to remove it regularly.
Q: How do I clean the kettle if it has a thick layer of scale?
A: Use a stronger solution of half vinegar and half water, or two tablespoons of citric acid. Boil, then soak for an hour, and repeat once if needed. Use a soft brush to loosen any loose pieces. Do not scrape with a knife or steel wool.
Q: Can I use dish soap inside the kettle?
A: We do not recommend it. Soap is hard to rinse out fully and can leave a taste and foam when you boil water. Use vinegar, citric acid or baking soda inside, and keep soap for the outside.
Q: How do I remove the vinegar smell from my kettle?
A: Fill the kettle with plain water, boil it, and throw it away. Do this two or three times. If a faint smell remains, boil water with a little lemon juice, then rinse and boil plain water once more.
Q: Can I use the same method to clean a tea kettle?
A: Yes. An electric tea kettle is cleaned the same way. If it has stained tea marks, a baking soda soak first, then a citric acid soak for scale, works well.
Q: How do I clean the bottom of an electric kettle?
A: The heating plate inside is where scale gathers. Soak it with vinegar or citric acid solution, then brush gently. Never clean the outside base with water, wipe it with a barely damp cloth.
