A Mr. Coffee coffee maker automatically brews your morning cup of joe with little effort on your part. However, after several uses, you will need to clean the machine in order to prevent minerals built up inside from tainting the flavor of your coffee. Perform this task on a regular basis to keep the coffee from your Mr. Coffee tasting its freshest.
Look for signs that your Mr. Coffee needs to be cleaned. These include increased brewing time, incomplete brewing and more steam than usual coming from the coffee maker.
Pour out any leftover coffee inside the pot. Rinse with tap water, then pour 4 cups white vinegar into the coffee pot. Add 4 cups tap water and let the coffee pot soak for 20 to 30 minutes.
Empty the coffee pot and rinse out the inside with tap water. Place the coffee pot on the warmer, empty the filter basket and place the paper filter inside. Close the basket.
Pour 4 cups white vinegar into the top of the Mr. Coffee, where the water would go for a brewing cycle.Run the vinegar through the coffee maker to demineralize the tubes and water reservoir. Over time, minerals in water will build up on the inside of the coffee maker, which can slow down brewing and make the coffee taste bad.
Turn the Mr. Coffee onto a regular brew cycle, and let the vinegar run through the machine until it has all dripped down into the coffee pot on the warmer.
Turn the coffee maker off so that the warmer does not heat the vinegar in the coffee pot. Let the vinegar sit in the pot for 30 minutes.
Pour out the vinegar, throw away the old paper filter, put a new filter into the basket and repeat steps 4 through 6 with the vinegar.
Follow steps 4 through 7, but replace the vinegar with 4 cups water. Repeat as many times as needed until you can no longer smell vinegar in the coffee pot after the water has cycled through the coffee maker.