This video tutorial is in the food category which will show you how to clean a coffee maker with vinegar. First you got to remove the used coffee powder from the coffee pot and put it in a compost maker or in the garbage bin. Then add one part vinegar and two parts water in the jug and pour it in to the coffee maker. Turn it on and after the cycle is completed, drain out the mixture of vinegar and water. If the coffee maker is still dirty, repeat the process. Once the pot is clean, flush it with cold water and your coffee pot will be nice and clean.