Discard any contents from the carafe and fill it with hot water. Leave some space for the bleach to come in. Pour ½ cup bleach into the hot water and allow it to sit for 15 minutes. Turn the coffee maker on and allow it to run through. Allow this solution to stand here for another 30 minutes, before discarding the solution. Fill the carafe with fresh hot water and turn on the apparatus to let it run a cycle. Carry out this procedure with more fresh hot water to get rid of all bleach residues.
