Step 1

Mix one part vinegar with one part water in a large enough amount to fill your coffee maker's water reservoir.

Step 2

Fill the reservoir with the vinegar-water solution (or descaling solution if you prefer).

Step 3

Run several brew cycles until you use all of the vinegar solution.

Step 4

Refill the water reservoir with water.

Step 5

Run 4-5 brewing cycles using only water. This step is crucial if you want your coffee to taste normal during your next brew. Drinking the descaling solution isn't dangerous but doesn't taste good, so don't skimp on this step.