A washing machine is designed to remove dirt, sweat, oils, and odors from clothes, but the machine itself is not automatically self-cleaning. Over time, detergent residue, fabric softener, lint, body oils, minerals, and moisture can accumulate in places that are difficult to see. The result is often familiar: a musty smell when the door or lid is opened, laundry that does not smell completely fresh after a wash, or dark residue around the door seal.

The good news is that most washing-machine odors are preventable with a straightforward maintenance routine. Manufacturers such as Samsung recommend regular drum-cleaning cycles and keeping the machine ventilated, while Whirlpool and Maytag similarly recommend a monthly cleaning cycle for many models. (Samsung au)

Why Does a Washing Machine Drum Start to Smell?

A bad-smelling washing machine is usually not caused by one single problem. Instead, several small maintenance issues can combine over time.

The inside of a washer regularly becomes wet, and some water can remain in seals, dispensers, hoses, filters, and other areas after a cycle. When detergent and fabric-softener residue mix with moisture, they can form a film that traps dirt and contributes to unpleasant odors. Samsung specifically identifies detergent buildup, wet laundry left inside the machine, drainage issues, and poor maintenance as common contributors to washer odors. (Samsung au)

Front-load machines can be particularly susceptible because the rubber door gasket has folds where water, lint, hair, and detergent residue can collect. Whirlpool recommends inspecting the folds and crevices of the gasket and removing accumulated debris during cleaning. (Whirlpool)

Another common mistake is assuming that using more detergent will make the machine cleaner. In reality, excessive or unsuitable detergent can leave additional residue. Whirlpool and Maytag both advise using the detergent type and amount recommended for the particular washer. (Whirlpool Product Help)

Common causes of washing-machine odors

Detergent or fabric-softener buildup
Moisture trapped inside the washer
Wet laundry left in the drum
Dirty door gasket
Dirty detergent dispenser
Blocked or dirty drain filter
Poor drainage
Infrequent drum-cleaning cycles
Overloading
Incorrect detergent
A drain hose installation problem
Long periods without ventilation

The important point is that cleaning only the visible drum may not solve the odor. The machine should be treated as a system rather than a single container.

How Often Should You Clean a Washing Machine Drum?

For many modern washing machines, a monthly cleaning cycle is a sensible maintenance schedule. Samsung advises periodic drum cleaning and notes that some of its machines recommend the Eco Drum Clean cycle around every 40 washes, while Whirlpool and Maytag commonly recommend a Clean Washer cycle approximately every month or 30 wash cycles. (Samsung au)

The exact interval should always follow the washer’s owner’s manual because cleaning programs, temperatures, detergent requirements, and allowable cleaning products differ between models.

A practical schedule looks like this:

Washer Maintenance Task	Suggested Frequency	Why It Matters
Run drum/tub cleaning cycle	About monthly or according to manual	Removes accumulated residue
Wipe front-load gasket	Every few washes or as needed	Prevents moisture and debris buildup
Clean detergent drawer	Every few weeks/monthly	Removes detergent and softener residue
Check drain filter	According to owner’s manual	Prevents debris and drainage problems
Remove wet clothes	Immediately after cycle	Reduces moisture-related odors
Leave door/lid open	Between loads when practical	Allows interior to dry
Check drain hose	Periodically	Helps prevent drainage-related odor
Inspect drum for residue	Monthly	Identifies buildup early

A heavily used machine, a washer in a humid environment, or a machine frequently used for heavily soiled laundry may need more frequent attention.

Before Cleaning: Check the Washing Machine Manual

Before putting any cleaning product into the washer, check the manufacturer’s instructions.

This is particularly important because not every washing machine should be cleaned in exactly the same way. Some models have dedicated Tub Clean, Self Clean, Eco Drum Clean, or Clean Washer programs. Others specify a particular type of washing-machine cleaner.

For example, Samsung’s instructions for certain Eco Drum Clean models specify particular cleaning agents and explicitly warn against using normal laundry detergent during that cleaning program. LG likewise recommends following the instructions for the washer and the cleaning product when using its Tub Clean function. (Samsung au)

That means a generic internet recipe should never automatically override the owner’s manual.

Best rule: If the manufacturer’s instructions and a homemade cleaning recipe disagree, follow the manufacturer’s instructions.

Step 1: Empty the Washing Machine Completely

Start with an empty washer.

Remove every item from the drum or basket, including socks, clothing, laundry bags, and forgotten small objects. Check around the door seal and inside the drum for coins, hair clips, tissues, lint, or other debris.

A cleaning cycle is intended to clean the machine itself. Laundry should not be inside unless the manufacturer’s instructions specifically say otherwise. Samsung, for example, warns against running its Eco Drum Clean cycle with laundry inside. (Samsung au)

Once empty, leave the door or lid open for a few minutes so you can inspect the interior properly.

Step 2: Inspect the Drum for Residue

Look carefully around the stainless-steel or plastic drum.

Check for:

Slippery or greasy residue
White mineral deposits
Dark spots
Lint
Hair
Detergent buildup
Small foreign objects
Standing water

A slightly damp drum immediately after washing is normal. Persistent standing water, however, may indicate a drainage problem that requires more attention.

If visible debris is present, remove it manually with a soft cloth before running the cleaning cycle.

Avoid using abrasive pads, knives, metal scrapers, or aggressive tools that could scratch surfaces.

Step 3: Clean the Rubber Door Gasket on a Front-Load Washer

The door gasket deserves special attention.

Pull the rubber seal back gently and inspect the folds. This is one of the places where lint, hair, detergent residue, and moisture can accumulate.

Whirlpool recommends checking the gasket’s folds and crevices for foreign objects and wiping away grime or detergent residue with suitable cleaning materials. (Whirlpool)

A simple gasket-cleaning method

Open the washer door.
Pull the gasket back gently.
Remove hair, lint, coins, and other debris.
Wipe the surface with a soft damp cloth.
Pay particular attention to the bottom of the gasket.
Clean inside the folds without stretching or damaging the rubber.
Wipe away remaining moisture.
Dry the gasket with a clean towel.

If there is visible mold or persistent staining, consult the owner’s manual before choosing a stronger cleaner. Some manufacturers provide specific instructions for diluted bleach solutions, while others warn against certain chemicals. Whirlpool, for example, provides specific guidance for diluted chlorine bleach on suitable gasket surfaces and emphasizes following manufacturer instructions. (Whirlpool)

Never mix bleach with vinegar, ammonia, acids, or other household cleaners.

Step 4: Clean the Detergent Drawer

The detergent dispenser is another frequently overlooked source of odor.

Liquid detergent, powder, and fabric softener can accumulate in the drawer and the cavity behind it. Over time, this residue can become sticky and trap dirt.

Samsung recommends removing the detergent drawer and washing its components under running water, while also cleaning the recess with a suitable small brush. (Samsung au)

How to clean it

Remove the drawer according to the washer’s instructions.
Separate removable inserts if the design allows.
Rinse the components with warm water.
Use a soft brush for stubborn residue.
Clean the inside of the drawer cavity.
Remove accumulated detergent from corners.
Rinse thoroughly.
Dry the components.
Reinstall the drawer correctly.

Do not force the drawer if it does not release easily. Different machines use different locking mechanisms.

A drawer that repeatedly develops heavy buildup may also be a sign that too much detergent or softener is being used.

Step 5: Clean the Drain Pump Filter When Your Washer Has One

Many front-load washing machines have a drain pump or debris filter located behind a small access panel near the bottom of the machine.

This filter can collect:

Coins
Hair
Lint
Small pieces of fabric
Buttons
Tissue fragments
Other foreign objects

Electrolux notes that water can remain around the drain and filter area and recommends cleaning the filter as part of washer maintenance. (Electrolux India)

Samsung also recommends regular filter maintenance and warns that clogged filters can contribute to drainage problems. (Samsung au)

Use caution when opening the filter

Before opening a drain filter:

Switch off the washer.
Unplug it if the manufacturer’s instructions call for this.
Place towels and a shallow container underneath.
Drain remaining water according to the manual.
Remove the filter carefully.
Clean away debris.
Rinse the filter if permitted.
Check the filter housing.
Reinstall it securely.

There may be more water inside the washer than expected, particularly if a cycle stopped before draining.

If the filter cannot be accessed safely or the machine contains significant standing water, professional service may be preferable.

Step 6: Run the Washer’s Tub Clean or Self-Clean Cycle

This is usually the most important part of the cleaning process.

If the washer has a dedicated Tub Clean, Clean Washer, Self Clean, Eco Drum Clean, or similar cycle, use it according to the owner’s manual.

These programs are designed specifically for cleaning the washer rather than washing clothing.

Samsung describes its Eco Drum Clean cycle as a way to remove detergent residue and buildup, while LG explains that its Tub Clean cycle helps remove detergent buildup and other residue from the wash drum. (Samsung au)

Whirlpool similarly recommends a Clean Washer cycle about monthly for many models. (Whirlpool Product Help)

What should go into the washer?

The answer depends on the machine.

Some manufacturers permit a dedicated washing-machine cleaner. Some models allow specific bleach procedures. Others specify oxygen-based cleaners or particular products.

For example, Samsung’s instructions for certain Eco Drum Clean machines specify oxygen-based cleaning products and warn against normal detergent in that cycle. (Samsung au)

Therefore:

Do not automatically pour vinegar, bleach, baking soda, citric acid, or another household chemical into the machine simply because an online recipe recommends it.

The owner’s manual is the safest starting point.

Is Vinegar Safe for Cleaning a Washing Machine?

Vinegar is frequently recommended online for washing-machine cleaning, but its suitability depends on the washer manufacturer and model.

Acidic cleaners can interact with some materials, seals, coatings, and components. LG’s current support guidance for certain washer models specifically cautions that chlorine bleach or acidic washing-machine cleaners can discolor or corrode components. (LG)

Bosch also provides specific information concerning washing-machine odors and vinegar rather than treating vinegar as a universally appropriate solution. (Bosch Home)

The safest approach is therefore:

Check the owner’s manual first.
Use a manufacturer-approved washing-machine cleaner if recommended.
Do not mix cleaning chemicals.
Never combine vinegar and chlorine bleach.
Never exceed the recommended amount of any cleaning product.
Avoid experimenting with multiple cleaners during the same cleaning session.

A cleaning method is only useful if it does not damage the machine.

Step 7: Wipe the Drum After the Cleaning Cycle

Once the cleaning program finishes, open the washer and inspect the drum again.

A cleaning cycle can loosen residue that was previously attached to internal surfaces. Wipe away any visible material with a clean microfiber cloth.

Pay attention to:

Drum edges
Door opening
Bottom of the basket
Gasket
Dispenser area
Accessible surfaces around the drum

If the machine’s manual recommends an additional rinse, perform it.

The goal is not simply to make the metal or plastic surface look clean. The goal is to remove loosened residue so that it does not remain inside the machine.

Step 8: Let the Washing Machine Dry Completely

Drying is one of the simplest and most effective odor-prevention habits.

After the wash:

Remove clothes promptly.
Wipe excess moisture from the gasket.
Leave the front door open or ajar when safe and practical.
Leave the detergent drawer partially open if the manufacturer permits it.
Allow air to circulate inside the machine.

Samsung specifically recommends removing damp clothes promptly and leaving the door slightly open to allow air circulation. (Samsung au)

Whirlpool likewise recommends leaving the washer door open between loads to help moisture evaporate and reduce odor-causing residue buildup. (Whirlpool Product Help)

This simple habit can make a substantial difference because odor prevention is largely about controlling residue and moisture before they become a bigger problem.

Front-Load vs. Top-Load: Does Cleaning Differ?

The basic principle is the same, but the maintenance points differ.

Front-load washing machines

Front-loaders require particular attention to:

Door gasket
Drain pump filter
Detergent drawer
Door area
Tub-clean cycle
Ventilation after washing

The rubber gasket is especially important because its folds can retain moisture and debris.

Top-load washing machines

Top-load machines generally do not have the same front-door gasket arrangement, but they can still develop residue and odors.

Pay attention to:

Wash basket
Agitator, if equipped
Detergent dispenser
Fabric-softener dispenser
Lid area
Drain system
Tub-clean cycle

Samsung’s maintenance guidance covers both front-load and top-load machines and emphasizes drum/tub cleaning, filter care, detergent-drawer maintenance, and removing wet laundry promptly. (Samsung au)

How to Prevent Washing Machine Odors From Coming Back

Cleaning a smelly washer once is useful. Preventing the smell from returning is much better.

1. Remove Clothes Promptly

Do not leave damp clothing sitting in the washer for hours whenever it can be avoided.

Wet laundry creates a humid environment inside the machine, and manufacturers including Maytag and Whirlpool identify leaving wet clothing inside as a contributor to mildew-related odors. (Product Help | Maytag)

2. Do Not Use Excessive Detergent

More detergent does not necessarily mean cleaner clothes.

Excess detergent can leave residue, particularly when the washer is designed for high-efficiency operation.

Follow the detergent manufacturer’s dosage and the washing-machine manufacturer’s recommendations. (Whirlpool Product Help)

3. Use the Correct Detergent

If the machine requires HE detergent, use HE detergent.

Using an inappropriate formulation can contribute to residue and odors. Maytag and Whirlpool both specifically highlight the relationship between detergent choice, residue, and washer odor. (Product Help | Maytag)

4. Do Not Overload the Drum

An overloaded washer may not clean or rinse clothing effectively.

Samsung recommends leaving adequate space for clothes to move and notes that overloading can affect washing and spinning performance. (Samsung au)

5. Keep the Gasket Dry

After a front-load wash, quickly wiping the lower section of the gasket can remove trapped water and debris.

This takes less than a minute but can reduce the amount of moisture left behind.

6. Clean the Dispenser Regularly

A dirty detergent drawer can continually reintroduce residue into the washing process.

Periodic removal and washing of the drawer and its recess helps prevent buildup. (Samsung au)

7. Run the Cleaning Cycle Regularly

A monthly cleaning routine is a practical baseline for many machines, although the owner’s manual should determine the final schedule.

Whirlpool and Maytag both recommend monthly Clean Washer cycles for many models. (Whirlpool Product Help)

8. Keep the Washer Level

An improperly leveled washer can experience drainage and water-retention issues.

Samsung notes that a washer should be leveled because water and laundry additives may not drain properly when the machine is not level. (Samsung au)

9. Inspect the Drain Hose

Odors do not always originate inside the drum.

A drainage problem can allow unwanted smells or residue to become associated with the washer.

Samsung specifically warns that improper drain-hose positioning can contribute to mold, bacterial accumulation, or siphoning problems. (Samsung au)

A Simple Monthly Washing Machine Cleaning Routine

For households wanting a straightforward routine, the following sequence works well for many machines:

Every few washes

Remove clothes promptly.
Wipe the front-load gasket.
Check for lint and debris.
Leave the door or lid open to dry.

Every few weeks

Inspect the detergent drawer.
Clean visible detergent residue.
Check the gasket more thoroughly.
Look for unusual smells or standing water.

About once a month

Empty the washer.
Clean the gasket.
Clean the detergent drawer.
Check the drain filter if applicable.
Run the manufacturer’s Tub Clean/Self Clean cycle.
Use an approved washing-machine cleaner if required.
Wipe away loosened residue.
Allow the machine to dry completely.

This routine is consistent with maintenance recommendations published by major manufacturers, although the exact frequency should be adjusted to the particular appliance. (Samsung au)

Cleaning Method Comparison: Which Approach Makes the Most Sense?

Cleaning Method	Best Use	Main Advantage	Important Consideration
Built-in Tub Clean cycle	Routine maintenance	Designed specifically for the washer	Follow model instructions
Manufacturer-approved cleaner	Odor and residue buildup	Formulated for washing machines	Use correct dosage
Manual gasket cleaning	Front-load maintenance	Removes visible debris directly	Do not damage rubber
Detergent-drawer cleaning	Residue buildup	Removes hidden detergent deposits	Clean the drawer recess too
Drain-filter cleaning	Debris/drainage problems	Removes trapped objects	Water may escape when opened
Hot empty cycle	Models without dedicated cleaning cycle	Useful for certain machines	Follow manual first
Vinegar-based cleaning	Only when manufacturer permits	Common household option	Not universally recommended
Chlorine bleach procedure	Certain compatible models	Strong disinfecting/cleaning option	Never mix with acids or other cleaners

The key distinction is between manufacturer-approved cleaning and generic household cleaning recipes. A method that works for one washer may not be suitable for another.

What If the Washing Machine Still Smells After Cleaning?

A persistent odor after a proper cleaning cycle deserves further investigation.

Start by identifying what the smell resembles.

Musty or moldy smell

Check:

Door gasket
Detergent drawer
Drain filter
Standing water
Tub-clean frequency
Moisture around the washer

Sewage-like smell

Investigate the drain connection and hose arrangement. Samsung specifically identifies improper drain-hose installation as one possible cause of foul odors. (Samsung au)

Sour or detergent-like smell

Look for excessive detergent, fabric-softener residue, or buildup inside the dispenser.

Burning smell

Do not treat a burning odor as ordinary washer dirt.

Stop using the appliance and consult the manufacturer’s troubleshooting guidance or a qualified technician, particularly if the smell is accompanied by unusual noise, smoke, overheating, electrical symptoms, or repeated faults.

When Cleaning Is Not Enough

There are situations where a washer needs more than routine cleaning.

Professional inspection may be appropriate when:

The odor returns immediately after thorough cleaning.
Water remains inside the machine.
The washer does not drain properly.
The drain pump makes unusual noises.
The door gasket is damaged.
Mold-like contamination is deeply embedded and cannot be adequately removed.
There is a persistent sewage smell.
The washer leaks.
Electrical or burning odors occur.
The machine repeatedly displays drainage or maintenance errors.

LG advises that if a musty odor persists after repeated Tub Clean cycles, service may be necessary. (LG)

The important distinction is between maintenance-related odor and an underlying mechanical or plumbing problem.

Frequently Asked Questions

How often should I clean my washing machine drum?

For many washers, about once a month is a practical starting point. Some manufacturers specify a number of wash cycles instead. Samsung, for example, recommends Eco Drum Clean at intervals that can depend on the model and usage, while Whirlpool and Maytag commonly recommend approximately monthly cleaning. (Samsung au)

Why does my washing machine smell even though the drum looks clean?

The visible drum may not be the actual source. Odor can originate from the door gasket, detergent drawer, drain filter, pump, hoses, or moisture trapped elsewhere inside the appliance. Samsung identifies several of these areas as potential contributors to washer odors. (Samsung au)

Should I leave my washing machine door open?

Generally, yes, when the machine’s design and surrounding space allow it. Leaving the door open or slightly ajar helps moisture evaporate. Whirlpool and Samsung both recommend ventilation between loads. (Whirlpool Product Help)

Can I use vinegar to clean my washing machine?

Do not assume vinegar is safe for every model. Some manufacturers caution against acidic cleaners for particular machines or components. Check the owner’s manual before using vinegar. (LG)

Can baking soda remove washing-machine odors?

Baking soda is commonly suggested as a household cleaning ingredient, but the better approach is to follow the washer manufacturer’s cleaning instructions. If the manufacturer specifies a dedicated cleaner or particular cleaning cycle, use that method instead of improvising.

Should I use normal laundry detergent during a drum-cleaning cycle?

Not necessarily. Some manufacturers specifically instruct users not to use normal detergent during their dedicated drum-cleaning programs. Samsung gives this warning for certain Eco Drum Clean models. (Samsung au)

Why does my front-load washer smell worse than my old top-loader?

Front-load washers use a sealed door gasket, and water can remain in its folds. This creates an area that requires deliberate drying and cleaning. It does not mean front-load machines are inherently dirty; they simply require different maintenance.

Can fabric softener cause washing-machine buildup?

Yes, residue from laundry additives can contribute to buildup. If excessive amounts are used or the dispenser is not cleaned regularly, deposits can accumulate. Samsung specifically recommends cleaning the detergent drawer and its recess. (Samsung au)

What is the best cleaner for a washing machine?

The best option is the cleaner specified or approved by the washing-machine manufacturer. Dedicated washing-machine cleaners are designed for this purpose, but compatibility and dosing should always be checked before use.

Whirlpool, for example, offers affresh washing-machine cleaner specifically intended to remove odor-causing residue and buildup from washer components. (Whirlpool)

How do I clean a washing machine that already smells bad?

Start by removing all laundry, manually cleaning the gasket and detergent drawer, checking the drain filter if equipped, and running the manufacturer’s recommended Tub Clean or Clean Washer cycle. If the odor persists, investigate drainage and other components rather than repeatedly adding cleaning chemicals.

Should the washing-machine lid stay open after every wash?

If it is safe and practical, allowing the interior to ventilate is beneficial. The exact position depends on the machine’s design. The objective is simply to prevent moisture from remaining trapped inside.

Why do clothes smell bad immediately after washing?

The odor may be coming from the washing machine rather than the clothes themselves. A dirty gasket, detergent residue, dirty filter, drainage issue, or wet laundry left in the machine can transfer unpleasant odors to freshly washed clothing. (Samsung au)

The Simple Habits That Make the Biggest Difference

A washing machine does not need complicated maintenance to stay fresh. The most effective routine is surprisingly simple:

Clean the drum regularly.
Clean the gasket.
Clean the detergent drawer.
Check the filter.
Use the correct detergent.
Avoid excessive detergent.
Remove wet clothes promptly.
Allow the machine to dry.
Check drainage when odors persist.

The manufacturers’ guidance consistently points toward these same fundamentals. Samsung emphasizes drum cleaning, filter care, correct detergent use, ventilation, and prompt removal of wet laundry. Whirlpool and Maytag emphasize monthly cleaning cycles, correct detergent use, ventilation, and keeping the machine free of residue. LG similarly recommends regular Tub Clean cycles alongside maintenance of the gasket, filter, dispensers, and related components. (Samsung au)

Final Thoughts: A Fresh Washer Starts With Moisture Control and Regular Maintenance

A washing machine can clean hundreds of loads of laundry without much attention, but it still needs occasional care. The appearance of a bad smell is often a warning that moisture, residue, and debris have been allowed to accumulate somewhere inside the system.

The solution is not necessarily a stronger chemical or a more aggressive cleaning method. In most cases, the better approach is systematic maintenance.

Start with the drum, but do not stop there. Inspect the rubber gasket on front-load machines. Clean the detergent dispenser and its recess. Check the drain filter when the machine has one. Run the washer’s dedicated cleaning cycle at the interval recommended by the manufacturer. Use only cleaning products that are compatible with the appliance, and never mix household chemicals.

Just as importantly, change the habits that allow odors to return. Remove laundry promptly after a cycle. Avoid excessive detergent. Give the washer enough ventilation to dry. Keep the door or lid open between loads when appropriate. Pay attention to drainage problems instead of masking them with repeated cleaning.

A particularly useful approach is to think of washing-machine maintenance as a small monthly routine rather than an emergency chore. Ten or fifteen minutes of attention can identify residue, trapped debris, moisture, or drainage problems before they become persistent odors.

And when a smell does not disappear after proper cleaning, that is valuable information. It may indicate a problem beyond the drum itself, such as a drainage arrangement, pump, filter, hose, gasket, or another internal component. At that point, continuing to add cleaning products is unlikely to be the best solution.

A clean washing machine should leave clothes smelling clean—not transfer yesterday’s residue into today’s laundry. With regular drum cleaning, sensible detergent use, good ventilation, and attention to the less-visible parts of the appliance, keeping the washer fresh can become one of the easiest maintenance habits in the home.