How to Clean Mold From a Washing Machine

A washing machine is designed to clean clothes, but the machine itself can become dirty over time. Mold can grow inside washing machines because they are frequently exposed to water, moisture, detergent residue, and dirt. Front-load washers are especially prone to mold around the rubber door seal, detergent drawer, and other damp areas.

If your washing machine smells musty, has dark spots around the rubber seal, or leaves clothes smelling unpleasant after a wash, mold may be part of the problem.

The good news is that cleaning mold from a washing machine is usually manageable with regular household cleaning and proper maintenance. The key is to clean the areas where moisture and residue collect and then keep the machine dry between washes.

Why Does Mold Grow in a Washing Machine?

Mold needs moisture and an organic food source to grow. A washing machine can provide both.

Common causes include:

• Leaving the washing machine door closed after a cycle
• Detergent and fabric softener buildup
• Standing water inside the drum or rubber seal
• Dirty detergent drawers
• Infrequent cleaning of the washing machine
• Using too much detergent
• Washing mostly with cold water
• Poor ventilation around the machine
• Dirt and residue trapped inside the door gasket

Front-load washing machines are particularly susceptible because their airtight doors help prevent water from leaking during a cycle. However, moisture can remain trapped inside after the wash is complete.

How Do You Know If Your Washing Machine Has Mold?

Mold is not always immediately visible. Sometimes the first sign is an unpleasant smell.

Look for:

• Musty or damp odors
• Black, green, gray, or dark spots
• Mold around the rubber door gasket
• Slime or residue inside the detergent drawer
• Clothes that smell bad after washing
• Mold or buildup around the drum opening
• Persistent dampness inside the washer

If cleaning the visible areas does not solve the odor, mold or residue may be present in areas that are harder to reach.

What You Need to Clean Mold From a Washing Machine

Before cleaning, check your washing machine manufacturer’s instructions. Some manufacturers have specific recommendations for cleaning products and washing machine cycles.

For general cleaning, you may need:

• Rubber gloves
• Old toothbrush or soft cleaning brush
• Microfiber cloth
• Clean sponge
• Warm water
• Washing machine cleaner
• White vinegar, if permitted by the manufacturer
• Baking soda, if permitted by the manufacturer

Do not mix different cleaning chemicals. In particular, never mix bleach with vinegar or other acidic cleaners, because dangerous gases can be produced.

How to Clean Mold From a Washing Machine

The cleaning process depends partly on where the mold is located. Start with the areas that are easiest to access.

Step 1: Empty the Washing Machine

Remove all clothing from the washer.

Check the drum carefully for socks, clothing, or other items that may have become trapped inside. Mold can develop on damp fabric that has been left in the machine for too long.

Keep the washing machine turned off while you clean the accessible areas.

Step 2: Clean the Rubber Door Seal

For a front-load washing machine, the rubber gasket is one of the most important areas to clean.

Pull the rubber seal back gently and inspect the folds. You may find:

• Hair
• Lint
• Dirt
• Soap residue
• Standing water
• Dark mold spots

Use a cloth or sponge with an appropriate cleaning solution to wipe the gasket thoroughly.

For stubborn buildup, use a soft toothbrush to gently scrub the affected areas. Avoid using anything sharp that could damage the rubber.

After cleaning, wipe the gasket with clean water and dry it completely.

Step 3: Clean the Detergent Drawer

Remove the detergent drawer if your washing machine allows it.

Rinse it under warm water to remove detergent and fabric softener residue. Use a soft brush or old toothbrush to clean corners and small openings.

Pay attention to areas where water enters the drawer. Mold and residue can also develop inside the compartment surrounding the drawer.

Dry the drawer and the compartment before putting it back.

Step 4: Clean the Washing Machine Door

Wipe the inside and outside of the washing machine door with a damp microfiber cloth.

Pay particular attention to the area around the glass and rubber seal. Residue can collect around the edges and contribute to unpleasant odors.

Dry the door after cleaning.

Step 5: Wipe the Drum

Inspect the inside of the drum.

If you see residue or mold, wipe the surface according to the manufacturer’s cleaning recommendations. Avoid abrasive tools that could scratch the drum.

Do not forget to check the small spaces around the drum opening, as dirt and moisture can collect there.

Step 6: Run a Cleaning Cycle

Many modern washing machines have a dedicated cleaning cycle. If yours does, use it according to the manufacturer’s instructions.

A washing machine cleaning cycle is designed to clean areas that may not be reached during a normal laundry cycle.

If your machine does not have a cleaning cycle, follow the manufacturer’s instructions for cleaning the drum.

A commercial washing machine cleaner may also be useful when recommended for your specific appliance.

Step 7: Clean the Filter

Some washing machines have a drain pump filter that can collect lint, hair, coins, and other debris.

Check your owner’s manual to locate the filter and learn how to access it safely.

Place a towel or shallow container underneath if water may drain out. Remove debris and clean the filter as directed.

A clogged or dirty filter can contribute to drainage problems and leave moisture inside the machine.

Step 8: Dry the Washing Machine

Once cleaning is complete, wipe away remaining moisture.

Leave the washing machine door open or slightly open when the machine is not being used, if your machine and installation allow this safely.

Also leave the detergent drawer partially open to allow air to circulate.

Drying the machine is one of the simplest ways to reduce the conditions mold needs to grow.

How to Remove Mold From a Washing Machine Gasket

The rubber gasket often requires extra attention because its folds can trap moisture and residue.

Start by pulling back each section of the gasket and removing visible debris. Wipe the area thoroughly and use a soft brush for stubborn buildup.

If mold has deeply penetrated the rubber and remains after repeated cleaning, the gasket may need to be replaced. Contact the manufacturer or a qualified appliance technician for advice.

Do not aggressively scrub the gasket or use harsh chemicals that could damage the rubber.

Can You Use Bleach to Clean Washing Machine Mold?

Bleach can kill mold on some surfaces, but whether it should be used inside a particular washing machine depends on the manufacturer’s instructions.

Some washing machine manufacturers provide specific instructions for using bleach during cleaning cycles, while others recommend different products.

If bleach is permitted, follow the manufacturer’s recommended amount and method.

Most importantly, never mix bleach with vinegar, ammonia, or other cleaning products.

If you are unsure which product is safe for your machine, use a washing machine cleaner recommended by the manufacturer.

Can Vinegar Remove Mold From a Washing Machine?

White vinegar is commonly used as a household cleaner and can help remove certain residues and odors. However, it is not appropriate for every washing machine or every component.

Some manufacturers advise against using vinegar because repeated exposure to acidic substances may affect certain rubber components.

Always check your owner’s manual before using vinegar inside your washing machine.

Can Baking Soda Help With Washing Machine Odor?

Baking soda can help reduce some household odors and may assist with cleaning residue. However, it should not automatically be combined with other cleaning products.

If your washing machine manufacturer permits baking soda, follow the recommended cleaning method.

For persistent mold, cleaning the gasket, detergent drawer, filter, and drum is more important than simply trying to cover up the smell.

How Often Should You Clean Your Washing Machine?

The ideal cleaning schedule depends on how often you use the machine, the type of washer, the environment, and the manufacturer’s recommendations.

As a general maintenance routine:

• Wipe the rubber gasket regularly
• Clean the detergent drawer regularly
• Remove debris from the door seal
• Run the manufacturer’s recommended cleaning cycle periodically
• Check the drain filter when necessary
• Leave the door open after washing
• Remove wet clothes promptly

If your washing machine is used frequently or develops odors quickly, you may need to clean it more often.

How to Prevent Mold From Coming Back

Removing existing mold is only part of the solution. Preventing moisture buildup is just as important.

Leave the Door Open

After a wash, leave the door open or slightly open when safe to do so. This allows moisture to evaporate instead of remaining trapped inside.

Remove Wet Clothes Quickly

Do not leave wet laundry sitting inside the washer for hours. Damp clothing can contribute to musty odors and create favorable conditions for microbial growth.

Use the Right Amount of Detergent

More detergent does not necessarily mean cleaner clothes. Excess detergent can leave residue inside the machine.

Use the amount recommended for your detergent, washing machine, and laundry load.

Clean the Gasket

Make wiping the rubber gasket part of your normal cleaning routine, especially if you have a front-load washer.

Keep the Detergent Drawer Dry

After washing, leave the drawer open if possible so moisture can evaporate.

Improve Ventilation

If the washing machine is installed in a small or poorly ventilated room, improving airflow can help reduce moisture.

What If the Washing Machine Still Smells After Cleaning?

If the smell remains after you clean the visible areas, there may be buildup or mold in an inaccessible part of the machine.

Possible causes include:

• Drain hose problems
• Dirty internal components
• Drain pump buildup
• Persistent standing water
• Poor drainage
• Mold beneath or behind the gasket
• Excess detergent buildup

At this point, consult the manufacturer’s troubleshooting information or contact a qualified appliance technician.

If the machine has significant visible mold or repeated contamination, professional cleaning may be appropriate.

When Should You Consider Professional Mold Inspection?

Most small amounts of surface mold around a washing machine can often be cleaned as part of routine appliance maintenance.

However, consider professional help if you notice extensive mold growth, recurring mold despite thorough cleaning, water damage around the appliance, or mold spreading to nearby walls, flooring, or cabinets.

A professional can help determine whether the problem is limited to the appliance or whether there is a larger moisture issue.

Simple Washing Machine Cleaning Routine

A simple routine can help keep your washer fresh:

After every wash: Remove wet clothes and leave the door open.

Regularly: Wipe the gasket, door, and detergent drawer.

Periodically: Run the recommended washing machine cleaning cycle.

When needed: Clean the drain filter and inspect the machine for standing water or drainage problems.

If odors return: Look for hidden residue, poor drainage, or a moisture problem.

FAQs

How often should I clean my washing machine for mold?

Clean the rubber seal and detergent drawer regularly, and run the manufacturer’s recommended cleaning cycle periodically. Frequent use may require more frequent cleaning.

What part of a washing machine gets moldy?

The rubber door gasket, detergent drawer, drum opening, and drain filter are common areas where moisture and residue can collect and encourage mold growth.

Can I use bleach to clean mold from my washing machine?

Bleach may be suitable for some machines, but you should first check the manufacturer’s instructions. Never mix bleach with vinegar, ammonia, or other cleaning products.

Can vinegar kill mold in a washing machine?

Vinegar may help with some odors and residue, but it is not recommended for every washing machine. Check the manufacturer’s instructions before using it.

Why does my washing machine smell like mold?

A musty smell can result from mold, trapped moisture, detergent buildup, dirty filters, or poor drainage. Cleaning the gasket, drawer, drum, and filter can help identify the cause.

Should I leave my washing machine door open?

Yes. Leaving the door open or slightly open when safe allows moisture inside the machine to evaporate and can help prevent mold growth.

Can mold in a washing machine make clothes smell?

Yes. Mold and accumulated residue inside the washer can leave clothes with a musty or unpleasant odor even after they have been washed.

How do I prevent mold from coming back in my washing machine?

Keep the machine dry, remove wet clothes promptly, use the recommended amount of detergent, clean the gasket regularly, and run the recommended cleaning cycle.

Should I replace a moldy washing machine gasket?

Not always. Surface mold can often be cleaned, but a gasket that remains heavily contaminated, damaged, or moldy after repeated cleaning may need replacement.

When should I call a professional for washing machine mold?

Consider professional help if mold is extensive, repeatedly returns after cleaning, there is water damage, or mold has spread to the walls, flooring, cabinets, or other areas around the appliance.

Conclusion

Knowing how to clean mold from a washing machine can help keep your appliance fresh and reduce unpleasant odors. Start with the rubber door seal, detergent drawer, drum, and filter, then run the manufacturer’s recommended cleaning cycle.

The most important step after cleaning is prevention. Keep the washer ventilated, remove wet clothes promptly, avoid excessive detergent, and regularly wipe areas where moisture collects.

If mold keeps returning or appears beyond the washing machine itself, look for an underlying moisture or drainage problem rather than simply cleaning the visible mold again.