How to Clean The inside of a Dishwasher That Smells Like Mildew

To eliminate a mildew smell from your dishwasher, first remove and clean the filter and spray arms. Wipe down the interior with vinegar to cut through grime. Run a cycle with a vinegar solution, then another with baking soda to absorb odors. Finish by leaving the door open overnight to fully air out. This deep cleaning routine using vinegar and baking soda will neutralize unpleasant odors and leave your dishwasher smelling fresh again.