Keeping your garbage disposal clean may also control foul odors and bacteria. When grinding food always use cold water as hot water tends to cause grease to liquefy and accumulate.
Try tossing a small bowl full of ice in into the garbage disposal. As the blades chop the ice cubes, the chips will help to remove grease build up and food particles which may be stuck to the blades. For weekly maintenance pour liquid soap into the garbage disposal while running the blades. You may also use baking soda and vinegar. Allow the bubbling action to do the dirty work. Finish off the job with a few shakes of lemon juice. An angled scrub brush makes it easy to clean the inside of the garbage disposal.Look for this brush in your local hardware or grocery store.