How to Remove Mold from a Washing Machine: A Practical Guide
Learn proven steps to safely remove mold from washing machines, prevent recurrence, and keep appliances clean. Includes front- and top-load tips, safety guidance, and a maintenancePlan to protect laundry quality.

To remove mold from a washing machine, start with a thorough wipe of gaskets, seals, and the detergent drawer, then run an empty hot-water cycle with white vinegar or a specialist washer cleaner. Wipe surfaces dry, leave the door ajar to dry completely, and repeat monthly. Always wear gloves and ensure proper ventilation.
Why Mold Forms in Washing Machines
Mold in washing machines forms when moisture remains in the gasket, seals, and detergent drawer after cycles. Soap scum, minerals from hard water, and warm air create a hospitable environment for mold, mildew, and bacteria. The Best Washing Machine team finds that even small damp pockets can lead to persistent odors and visible growth if not addressed. Understanding how mold takes hold helps you target the problem at the source and protect laundry quality.
Common Mold Hotspots You Should Inspect
Mold hides in places washers routinely contact water and detergent. Check the rubber door gasket for residue and creases; clean the detergent drawer thoroughly; inspect around the drum seal and near the drain hose. Don’t forget to look behind removable panels and around lint filters. In humid spaces or basements, mold can grow quickly, especially if you rarely dry the unit after use. Regular inspections catch early signs before it spreads.
Cleaning Agents: What Works and What to Avoid
Vinegar and baking soda can help loosen grime and neutralize odors when used correctly. Hydrogen peroxide is another option for spots that resist wiping. For many washers, a dedicated washer cleaner product or a hot-water cycle with a mild cleaner is effective. Avoid using abrasive cleaners on rubber seals and never mix bleach with ammonia or acidic cleaners, which creates dangerous fumes. Always ventilate and wear protective gear.
Front-Load vs Top-Load: Mold Patterns and Solutions
Front-loading machines tend to trap moisture around the door gasket and in thin crevices, making them more prone to mold than top-load models. Top-load machines may harbor mold behind the agitator and in the detergent dispenser. Regardless of type, the same principles apply: clean, rinse, dry, and repeat on a regular basis. Tailor the approach to access points that are unique to your model.
Drying, Airing, and Routine Maintenance
After any cleaning cycle, wipe the gasket, drawer, and door, then leave the door or lid open to air-dry. Keep a small towel handy to absorb drips and prevent moisture buildup in the surrounding area. Consider a monthly maintenance routine that includes a deep clean of seals and a quick wipe-down of the drum interior. A dry, well-ventilated space helps prevent mold growth between washes.
Safety First: Protective Measures and Ventilation
Work in a well-ventilated area and wear gloves and, if needed, a mask to avoid inhaling mold spores. Never mix cleaners in the same container unless the product directions explicitly allow it. Read your washer’s manual for any material compatibility notes and avoid using products that could damage rubber hoses or seals.
When Mold Returns: Next Steps
If you still see mold after cleaning, reassess drainage and airflow. Check for standing water in hoses or the drum and confirm there is no leak seeping into the cabinet. Consider using a stronger cleaning cycle with the manufacturer-approved product, or contact a technician if seals show wear or cracks. Persistent growth may indicate an underlying issue beyond routine cleaning.
Common Myths About Washing-Machine Mold
Myth: Mold only grows in dirty machines. Fact: It grows in damp environments with residual moisture, even after normal use. Myth: Bleach always fixes mold. Fact: Bleach can damage seals and may not reach hidden mold in crevices. Myth: If it smells better after a cycle, there’s no mold left. Fact: Odor can persist until surfaces are thoroughly cleaned and dried.
Tools & Materials
- Nitrile rubber gloves(Protect hands from cleaners and mold)
- Microfiber cloths(For wiping gaskets, drawers, and seals)
- Old toothbrush or small brush(Scrub tight crevices and seals)
- White vinegar (5–6% acetic acid)(Used in cycles or for spot cleaning)
- Baking soda(For deodorizing and grime lifting)
- Hydrogen peroxide 3%(Alternative cleaner for stubborn spots)
- Dish detergent(Mild cleaner for regular wiping)
- Bucket(For collecting wastewater or soaking parts)
- Towel or drying rack(Drying after cleaning to prevent moisture)
Steps
Estimated time: 40-60 minutes
- 1
Power down and prepare the space
Unplug the washer, pull it away from the wall, and ensure the area is well-ventilated. Remove any laundry and move to a safe, dry area before cleaning.
Tip: Keep a towel handy to catch drips and avoid water on electrical outlets. - 2
Inspect and remove loose debris
Remove the detergent drawer and inspect the drawer cavity and gasket for soap scum, hair, or residue. Wipe away visible buildup with a damp microfiber cloth.
Tip: Use the toothbrush to reach tight corners around the drawer track. - 3
Treat the gasket and dispenser
Wipe the door gasket with a solution of water and detergent; spray or wipe the detergent drawer slot and rinse away residue. Pay attention to folds and creases.
Tip: Avoid harsh scrubbing that may damage rubber seals. - 4
Run a cleaning cycle with cleaner
Run an empty hot-water cycle with white vinegar or a manufacturer-approved washer cleaner to target hidden mold and biofilms.
Tip: Do not mix cleaners in the same load unless the product directions allow it. - 5
Rinse, wipe, and inspect again
After the cycle, wipe the drum interior, gasket, and drawer thoroughly; check for any remaining mold and repeat cleaning if necessary.
Tip: Use a second short rinse cycle if you still detect odor. - 6
Dry thoroughly and restore setup
Dry all surfaces completely, leave the door ajar for several hours, and reassemble parts. Schedule a monthly cleaning as a preventive measure.
Tip: Keep the space breathable—avoid damp storage or humid basements.
FAQ
Is mold in a washing machine dangerous to health?
Mold can trigger allergies and asthma in sensitive individuals. Prompt cleaning and good ventilation reduce exposure. If symptoms persist, consult a clinician.
Mold in washers can trigger allergies; clean promptly and ensure good airflow.
Is bleach safe to use on washing machines?
Bleach can degrade rubber seals and may not reach mold hidden in crevices. Use cautiously and only in accordance with the manufacturer’s directions.
Bleach can harm seals; use with caution and follow the manual.
How often should I clean my washing machine to prevent mold?
Aim for a monthly deep clean, especially in humid environments, and adjust based on odor and usage.
A monthly deep clean helps prevent mold recurrence.
Should I leave the door open after a wash?
Yes. Leaving the door ajar after cycles helps air-dry the interior and reduces moisture where mold can form.
Always leave the door slightly open to dry out.
Do mold problems happen more with front-load washers?
Front-load washers are more prone due to tighter seals; regular cleaning of gaskets is especially important.
Front-loads have higher mold risk; clean seals regularly.
What if mold keeps coming back after cleaning?
Persistent mold may indicate worn seals or drainage issues; consider professional inspection to assess leaks or component wear.
If it keeps returning, a pro may be needed to check seals and drainage.
Watch Video
The Essentials
- Target mold at gasket, drawer, and drum crevices.
- Use safe cleaners and avoid damaging rubbers.
- Dry surfaces thoroughly to prevent recurrence.
- Maintain a monthly cleaning routine for odor control.
- Keep the door open after cycles to air-dry.
