Mineral deposits can build up inside a kettle, particularly where the water contains more dissolved minerals. The amount and speed of buildup vary, so inspect the kettle instead of following a rigid schedule copied from a different household.
Find the manufacturer's descaling instructions for the exact model. They may specify a particular product or a permitted method, along with amounts, contact time and rinsing steps. Do not assume that any acidic household liquid is suitable for every kettle's metal, seals and coatings.
Prepare the kettle safely
Disconnect it as directed and let it cool before handling parts that may be hot. Keep the electrical base, plug and connections dry. If the kettle has a removable filter, follow its separate removal and cleaning instructions rather than forcing it out.
Use the specified descaler at the stated concentration. More product or a longer soak is not automatically more effective and may damage components. Never mix descaling chemicals with other cleaners.
Follow the heating or standing sequence exactly where one is given. Stay within the kettle's minimum and maximum fill levels and do not run it empty. If the instructions call for a cold treatment, do not invent an additional boiling step.
Rinse before making a drink
Complete every required rinse and fresh-water cycle. Discard that water as directed rather than using it for food or beverages. Check that any removable filter is correctly refitted and that the kettle is fully reassembled before normal use.
Wipe the exterior using an approved method, avoiding immersion unless the product is specifically designed for it. Dry areas that need to remain dry before reconnecting the kettle.
If deposits remain, repeat only as the manufacturer permits or contact support. Scraping the interior with a sharp tool can cause damage, and descaling is not a repair for leaks, faulty switches or damaged cords.
Keep the instructions accessible so the next cleaning is straightforward. Notice whether your water and usage create buildup quickly, then choose an inspection rhythm that fits. The useful habit is checking the kettle and using its approved method, not applying the strongest possible cleaning treatment on a fixed calendar.