If your dishwasher and dishes have a strong chemical smell even after running rinse cycles, there are a few steps you can take to eliminate the odor:
Clean the dishwasher filter: Check if your dishwasher has a removable filter, and if so, clean it according to the manufacturer's instructions. A clogged or dirty filter can contribute to unpleasant odors.
Inspect the spray arms: Remove the spray arms (if possible) and clean them to ensure there is no debris or buildup obstructing the water flow. Use a small brush or toothpick to clear any clogs in the spray arm nozzles.
Run a vinegar cycle: Empty the dishwasher and place a cup of white vinegar on the top rack. Run a full cycle on the hottest setting. Vinegar helps to neutralize odors and break down residue in the dishwasher.
Baking soda solution: Sprinkle a cup of baking soda on the bottom of the dishwasher and run a short hot water cycle. Baking soda helps absorb odors and freshen the dishwasher.
Check for trapped food debris: Inspect the dishwasher's interior, including the door gasket, racks, and bottom area, for any trapped food particles or residue. Clean these areas using a soft brush or sponge and a mild dish soap.
Air out the dishwasher: After running the cleaning cycles, leave the dishwasher door open for a while to allow fresh air to circulate and help eliminate any lingering smells.
If the odor persists after following these steps, it may be worth contacting a professional appliance repair service to inspect and service your dishwasher, as there could be underlying issues causing the smell.