Mineral deposits and oily residues, impurities that alter the taste and aroma of coffee, accumulate with each pot brewed. Also, the dark, moist environment enclosed within a coffee maker can make it a host for mold, yeast, or bacteria.
Cleaning a coffee maker with vinegar is a simple procedure. Performing it monthly removes scale, keeps germs at bay and ensures that coffee tastes and smells its best.
The first step in removing scale from a coffee maker is to fill the reservoir of the coffeemaker halfway with distilled white vinegar. The next step is to fill the coffee maker to the top with water and turn it on. When about half the vinegar solution has dripped into the coffeepot, the coffee maker should be turned off, allowing the solution to steep. After one hour, the coffee maker can be restarted to allow the remaining liquid to process. After this, the water can be poured down the drain or taken outside to pour onto weeds as a weed killer.
To make sure the next pot of coffee is vinegar-free, the reservoir should be filled with plain water and run again, repeating as needed to eliminate the smell of vinegar completely. The final step is to wash the filter basket and coffee pot, either by hand or in the dishwasher.