Descale Kettles Naturally: The Best Household Remedies

Descale Kettles Naturally: The Best Household Remedies
Photo: CC0 / Pixabay / kboyd

Lime and calcium deposits look unsightly on your kettle and increase energy consumption. With our household remedies, you can effortlessly decalcify your kettle and get it shining again.

Calcified Kettle – What’s Wrong with That?

Lime deposits increase energy consumption and are an ideal breeding ground for bacteria. (Photo: © Utopia)

Lime is a naturally prevalent compound in tap water. The concentration varies by region and water source. When you heat water in the kettle, lime begins to build up on the surfaces.

When the kettle becomes covered with a layer of lime, more energy is required to heat the water. This also means that it takes longer to boil the water. The lime deposits can also become a breeding ground for bacteria. And let’s face it: who like to see lime flakes floating around in their tea?

Descaling with Vinegar

Luckily, you can easily dissolve lime buildup with vinegar. It’s inexpensive and you probably already have it on hand. This means you won’t need to purchase any costly special products to descale your kettle.

Instructions:

  1. Fill your kettle with about 500 ml (2 cups) of water and 30 ml (2 Tablespoons) of concentrated vinegar essence.
  2. Allow the kettle to boil. Stand clear from the kettle, as the vinegar vapors can be quite pungent and irritate the eyes and mucous membranes when in direct contact. Open a window to allow the vapors to dissipate more quickly.
  3. Let the kettle soak for about half an hour so that the lime has time to dissolve.
  4. Empty the kettle and boil new water in it to rinse away the vinegar.

The main difference between household vinegar and concentrated vinegar essence is the acetic acid content. For household vinegar, this is about 5% by volume. For concentrated vinegar essence, it is usually more like 25%. If you don’t have the concentrated stuff at hand, just add a little more household vinegar to the kettle. For example, 30 ml of 25% acid vinegar is about 150 ml (5 oz) of 5% acid vinegar.

Descaling with Citric Acid

You can also descale your kettle with citric acid. However, you must never heat citric acid in a kettle! When heated, the citric acid reacts with the lime to form calcium citrate. This substance is similar to the lime deposits, but even more difficult to remove from the kettle!

Instructions:

  1. Fill your kettle with about 500 ml (2 cups) of COLD water and 1 Tablespoon of powdered citric acid.
  2. Allow the solution to soak in the kettle for about 45 minutes.
  3. Rinse the kettle twice with cold water.

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