1. Fill the tank with white wine vinegar
White vinegar is the best product for descaling a coffee maker and moreover at a low cost. You can put pure vinegar or dilute it up to 50% with cold water.
2. Leave the vinegar for about 5 minutes in the tank to descale it.
3. Switch on your coffee maker
Allow about half of the liquid to pass through, then wait 5-10 minutes for the second half to pass. Once this step is done, you can empty the vinegar from your coffee maker.
4. Do the same again with pure water.
Now fill the tank with plain water and repeat the operation by passing half of it, wait 5 minutes, then pass the rest; You can repeat this operation 2-3 times.
There you have it, the scale or limescale has disintegrated from your coffee maker.