Advice and Inspiration

How to Descale a Kettle in Minutes

Author: Emma Roff Published: Jan 21, 2025

A kettle is a kitchen essential in most UK households, especially for tea and coffee lovers. But over time, limescale can build up inside your kettle, affecting its performance and leaving unpleasant residue in your drinks. Descaling your kettle is quick, easy, and ensures your brews taste their best. Here’s how to do it in just a few minutes.

Why does limescale build up?

Limescale forms when water evaporates, leaving behind mineral deposits. It’s more common in areas with hard water, which has a higher concentration of calcium and magnesium. Regular descaling prevents limescale build-up, keeping your kettle efficient and prolonging its lifespan.

Step-by-step guide to descale your kettle

1. Empty the kettle

Ensure your kettle is empty and unplugged before starting.

2. Prepare the descaling solution

Fill the kettle halfway with equal parts white vinegar (or lemon juice) and water. This natural solution is effective at breaking down limescale without harsh chemicals.

3. Boil the solution

Turn the kettle on and bring the mixture to a boil. Once it’s boiled, turn off the kettle and let the solution sit for about 15-20 minutes to work its magic.

4. Rinse thoroughly

Pour out the solution and rinse the kettle thoroughly with fresh water. It’s important to remove all traces of vinegar or lemon to avoid lingering flavours in your drinks.

5. Wipe the interior and exterior

Use a soft sponge or cloth to wipe down the inside and outside of the kettle. For stubborn limescale spots, a little baking soda on the sponge can help.

6. Boil fresh water

To ensure no residue remains, fill the kettle with fresh water, boil it, and pour it out. Your kettle is now clean and ready to use!

Alternative descaling methods

1. Using a commercial descaler

If you prefer, you can purchase a commercial descaling product designed for kettles. Follow the manufacturer’s instructions for best results.

2. Bicarbonate of soda

Mix a tablespoon of bicarbonate of soda with water and follow the same steps as above for a natural alternative.

Quick tips to prevent limescale build-up

  • Empty the kettle after each use: Avoid leaving water sitting in the kettle for long periods.
  • Use a water filter: Filtering your water can reduce the minerals that cause limescale.
  • Regular maintenance: Descale your kettle every 4-6 weeks, especially if you live in a hard water area.

Descaling your kettle doesn’t have to be a chore. With these simple steps, you can keep it in top condition, ensuring every cup of tea or coffee tastes as good as it should. Regular maintenance will also help your kettle last longer and save energy by boiling water more efficiently.

Looking for more quick appliance care tips? Check out our blog for bite-sized guides to keeping your kitchen running smoothly!

Pick up a kettle at Comet now


Are you in the market for a new kettle? At Comet, you’ll find an incredible range of kettles from leading brands such as Swan, Smeg, and Tower. Whether you’re looking for sleek designs, advanced features, or budget-friendly options, we’ve got you covered.

We offer a selection of flexible financing options to suit your payment needs. You can use Klarna Pay in 3 or PayPal Credit to spread those costs over three interest-free payments. With Comet, upgrading your kitchen essentials has never been easier!

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