Does your dishwasher give off an unpleasant smell no matter how often you clean it? You're definitely not the only one facing this issue.
Cleaning your dishwasher might not be the most enjoyable chore, but regular thorough cleaning is crucial to maintain a fresh kitchen and spotless dishes after each cycle.
Here are seven effective techniques used by cleaning pros to permanently eliminate dishwasher odors.
Eliminating Dishwasher Smells for Good
Unfortunately, there's no shortcut—deep cleaning and consistent upkeep are the keys to banishing dishwasher smells for good. Fortunately, there are some simple methods to lighten the load.

1. Regular Cleaning is Essential
Whenever you clean your kitchen, don't forget to include your dishwasher, advises cleaning expert Vannessa Bossart. Regularly cleaning the interior and emptying the filter of food debris, grease, and soap scum is vital to preventing unpleasant odors.
2. Scrape Plates Before Loading
“To minimize odors, always scrape excess food off your dishes before placing them in the dishwasher,” suggests Jade Piper, Operations Manager. This helps keep food out of the filter, which is a frequent source of bad smells.
“This simple step prevents food buildup and ensures your dishwasher operates efficiently, focusing on cleaning instead of battling tough stains.”
3. Load Your Dishwasher Properly
“Understanding how to load a dishwasher correctly not only settles household debates but also helps prevent odors by ensuring optimal performance,” explains Vannessa Bossart.
Avoid overloading the dishwasher to ensure everything is thoroughly rinsed, preventing lingering food particles from contributing to unpleasant smells.
4. Keep the Door Open
Similar to cleaning a washing machine, leaving the dishwasher door ajar when not in use allows it to air out, reducing mold growth and bad smells, says cleaning expert Eliana Coca.
“This promotes air circulation which is essential in combating the moist environment that fosters bacteria and mold. Regular use of the machine also helps prevent water from stagnating, which can lead to stale odors.”
5. Use Vinegar for Cleaning
“There are many excellent products available for cleaning dishwashers,” says Ron Shimek, President of a well-known appliance service. “However, white vinegar is an effective natural alternative.”
Vinegar cleaning is a trusted method for tackling stubborn odors. It’s particularly effective against even the most persistent smells, as noted by Daniel Vivanco, a cleaning expert. “Utilizing vinegar monthly can dramatically eliminate odors and mineral build-up. Running a hot cycle with a cup of vinegar on the top rack helps dissolve grease and remove lingering smells.”
“Avoid using bleach,” Ron warns. “It can damage your dishwasher’s rubber seals and components.”
Cleaning Vinegar | View at Target
Keep a bottle of cleaning vinegar handy for various household tasks.
6. Clean Seals and Gaskets
“Your dishwasher’s seals and gaskets often get overlooked during cleaning sessions,” points out Jade Piper. “These areas trap moisture and food particles, leading to mold and unpleasant odors.”
After each use, Jade recommends wiping the seals with a damp cloth or sponge, ensuring to get into all crevices. “If you encounter stubborn residue, mix warm water with mild dish soap, and use a soft brush to scrub them clean.”
7. Perform Regular Maintenance
Just like any appliance, routine dishwasher maintenance is essential for preventing odors and extending its lifespan, stresses Vannessa Bossart. This includes checking for clogs in the drain hose, ensuring the spray arms are clear, and running maintenance cycles with a specialized cleaner to eliminate buildup and odors.
“Using a rinse aid, like Finish Jet-Dry available at Walmart, can improve drying and prevent water spots, which contribute to odors if left untreated.”
Common Questions
What Causes Dishwasher Odors?
A foul smell from your dishwasher can stem from various issues. A dirty or clogged filter is the primary cause, followed by food residue on the racks or interior and mold growth in the gasket. Fortunately, these problems can be resolved with a thorough cleaning.
Why Do My Dishes Smell After Washing?
If your dishes come out smelling bad, your dishwasher probably needs a deep clean. Over time, food particles can cling to the jets and racks, transferring odors to your dishes during the wash cycle. A comprehensive cleaning typically resolves this issue.
“If deep cleaning doesn’t eliminate the odors, or if you notice leaks or unusual noises during operation, it’s time to consult a professional,” advises Ron Shimek.
Even top-quality dishwashers can develop bad odors if neglected. While cleaning may not be the most fun task, addressing unpleasant smells promptly or maintaining a regular cleaning schedule is the best way to keep this chore manageable.