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If the descaling indicator stays on after descaling, the machine may not have fully registered the cycle. Run the full rinse cycle and make sure the water tank is filled correctly. If the problem persists, consult the manual or contact DeLonghi customer service.

For most DeLonghi fully automatic machines, use 100 ml of EcoDecalk per descaling cycle. The 500 ml bottle is enough for five cycles. Check your manual for the exact dosage for your model.

Philips advises descaling your Senseo every three months under normal use. If you use it daily or live in a hard-water area, every two months is sensible. The machine will also indicate this via the descaling light.

Vinegar is a common home remedy, but Philips advises against using it on Senseo machines. It can damage internal rubber parts and leaves an odour that is hard to remove. Use a descaler specifically designed for coffee pod machines.

Descaler sachets contain a powder you dissolve in water, while liquid descaler can be dosed straight from the bottle. Both are effective. Sachets store easily and liquid descaler is a little quicker to use.

HG offers a coffee machine descaler that is suitable for several brands, including Senseo. Always check the packaging to confirm it is compatible with coffee pod machines and follow the dosing instructions carefully.

The descaling solution is the same for both models, but how you activate descaling mode differs. The Infinissima operates differently from the Genio S Extra, so check your machine's manual for the correct steps.

Limescale builds up in the water lines and the heating element. The machine becomes less efficient, coffee quality drops, and eventually the pump or heating element can be damaged. Regular Dolce Gusto descaling is the simplest way to prevent this.

On average, every three to four months. If you use the machine daily or live in a hard-water area, do it more often. The descaling indicator on your machine is a good guide.

With normal use, two to three cups a day, descaling every two to three months is enough. If you use the machine more often or have hard water, monthly descaling is wiser. Many machines will give a notification when it is time.

Check that you completed the full descaling cycle and did not skip the rinse step. On some models, such as the Genio S Extra, you need to restart the machine after descaling to reset the light. Refer to your model's manual for the exact steps.

Universal descalers available at supermarkets and drugstores can work well for many coffee machines. Always check whether the product is compatible with your brand and model. When in doubt, choose the product recommended by your machine's manufacturer.

Vinegar contains acetic acid and dissolves limescale. Nevertheless, most manufacturers advise against using vinegar. The strong smell penetrates the internal parts and is difficult to remove. In addition, vinegar can attack rubber parts and seals. Preferably use a product specifically developed for coffee machine maintenance.

Professional descalers are often more concentrated and suitable for intensive use in catering environments. Household descaling products are designed for home use and are safer to handle without specialist knowledge. For home use, a household descaler for the coffee machine is sufficient.

Durgol descaler for Dolce Gusto and the official NESCAFÉ Dolce Gusto descaling kit are both suitable. Choose a product specifically developed for high-pressure espresso machines. Do not use products that are not intended for this type of machine.