Because of hard water and other water impurities, coffee makers can become discolored and the coffee gets a nasty taste. To remove the build-up, fill your coffee pot half full with white vinegar and top off with distilled or filtered water. Pour the contents of the pot into the coffee maker and turn it on to brew. The heat and the white vinegar will remove all of the build-up. Once it is done, run two pots of clean water through the maker. Your coffee will taste better and your coffee maker will be clean. If you live with especially hard water you may have to clean your coffee maker every few months.
