Wipe away any food debris and gunk inside the dishwasher with paper towels.
Disinfect the inside of the dishwasher with 1/4 cup of chlorine bleach, 2 tablespoons liquid dish detergent and 1 quart of water. Soak a sponge in the solution and wipe down all areas of the dishwasher such as the walls, shelves, gaskets and door.
Pour 1/2 cup of chlorine bleach into the bottom of the dishwasher. Run the empty dishwasher through a complete cycle to destroy any odor-causing bacteria.
Pour baking soda into a shallow bowl. Place the baking soda on a shelf inside the appliance. Allow the baking soda to absorb the odors overnight.
Create a baking soda paste to remove any lingering odors by combining 1 cup of baking soda with 1 cup of water. Apply the paste inside the dishwasher with a washcloth, and then rinse it off with clean water.