Universal descaler

(citric acid)

A low-odour powder against limescale in kettles, coffee machines, irons and more. Easy to dose sparingly, gentler on materials than vinegar and readily biodegradable. Dissolve in warm water, let it act, rinse thoroughly. For appliances with aluminium or sensitive parts, follow the maker notes.

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Good to know

Appliances last longer and run more efficiently when they are clean and descaled. The rule of thumb: descale regularly (mind your water hardness), keep filters and seals clear, and for baked-on dirt soak rather than scrub. Home remedies cover a lot, for the stubborn stuff a special cleaner helps.