How to descale an electric kettle
Fill the kettle with an equal part solution of water and household vinegar and let this soak for an hour. Once the hour is up, just boil the kettle. Then, empty the kettle and rinse it thoroughly.
Fill the kettle up to half or three quarters level with equal parts of water and white vinegar. Bring the solution to a boil. Turn off the kettle and remove its power cord plug from the wall outlet. Let the vinegar-water mix sit in the kettle for 15-20 minutes. Now, throw the water away and rinse the equipment. You may have to rinse several times to make sure there is no trace of vinegar remaining in the kettle. Wipe the inside of the kettle with a clean cloth and leave it to dry completely. After drying, you can again boil water in the kettle and discard it to remove possible remaining aftertaste left after cleaning. In case there is a lingering vinegar smell then you can boil water in the kettle a few times. If there is a lot of scaling to be removed, you may use a stronger vinegar mixture and leave it in the kettle for an hour, or even overnight.
You can leave the mixture in the kettle overnight without boiling.
Fill the kettle up to half or three quarters level with equal parts of water and white vinegar. Bring the solution to a boil. Turn off the kettle and remove its power cord plug from the wall outlet. Let the vinegar-water mix sit in the kettle for 15-20 minutes. Now, throw the water away and rinse the equipment. You may have to rinse several times to make sure there is no trace of vinegar remaining in the kettle. Wipe the inside of the kettle with a clean cloth and leave it to dry completely. After drying, you can again boil water in the kettle and discard it to remove possible remaining aftertaste left after cleaning. In case there is a lingering vinegar smell then you can boil water in the kettle a few times. If there is a lot of scaling to be removed, you may use a stronger vinegar mixture and leave it in the kettle for an hour, or even overnight.
You can leave the mixture in the kettle overnight without boiling.