Descaling the kettle

Quasar

I use any cheap vinegar from the supermarket. One quarter vinegar, the rest water, left in the kettle overnight. In the morning, a good rinse, a couple of boils and it's ready to go. They key is not to let the hard deposits build up too much.

Incidentally, I often empty a bottle of (cheap) vinegar in the toilet bowl and hey presto, a hygienic, harmless and ecological strong limescale remover has been in action.

Said vinegar costs me 21p per bottle in Morrisons.