To clean a coffee maker without vinegar, run a mixture of one part water and one part lemon juice through the appliance. You need water, fresh lemons or a bottle of lemon juice, a juicer to extract the juices out of fresh lemons, and a dishwasher or mild detergent.Continue Reading
If you are using fresh lemons, use the juicer to squeeze enough juice out of the lemons to fill half of the carafe. Fill the carafe to the halfway mark with water. Fill the rest of the carafe with lemon juice.
Pour the mixture in the coffee maker's reservoir, and position the carafe on the warming plate. Plug the appliance in, and turn it on. Allow the appliance to run until half of the mixture in the reservoir is emptied into the carafe. Turn the appliance off, and wait one hour. Turn the appliance back on, and allow the rest of the mixture in the reservoir to empty in the carafe. Empty the carafe, and repeat the process several times with water.
Run the carafe and filter basket through a cycle in the dishwasher, or wash the parts by hand with a mild detergent.