How To Clean A Washing Machine Step By Step Guide

Your washing machine cleans your clothes, but who cleans the machine? Over time, soap scum, mineral deposits, and trapped moisture create odors, mold, and reduced efficiency that transfer straight onto your laundry.

You should clean your washing machine every 1–3 months using white vinegar and baking soda. Run a hot cycle with 4 cups of vinegar, let it sit for one hour, then add 1 cup of baking soda and complete the cycle. Wipe the drum, gasket, and detergent dispenser, then leave the door open to air dry.

This guide draws on established appliance maintenance practices and cleaning science to give you a complete, step-by-step system. Whether you own a top-load or front-load washer, you’ll learn natural methods, deep-cleaning techniques, and maintenance habits that keep your appliance—and your clothes—fresh and hygienic.

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Key Facts

Mold and mildew thrive in front-load washers because airtight rubber gaskets trap moisture, making weekly gasket wiping essential for odor prevention.

Vinegar dissolves mineral buildup and kills bacteria while baking soda deodorizes and scrubs away residue, creating a powerful natural cleaning combination.

The drain pump filter collects lint, coins, and hair that cause slow drainage and bad smells, and it should be cleaned every 2–3 months.

High-efficiency (HE) detergent residue builds up faster than regular detergent, so using the correct amount prevents soap scum that harbors odors.

Leaving the washer door or lid open after each cycle is the single most effective habit to reduce moisture and prevent mold growth, according to appliance maintenance guidelines.

How Often Should You Clean Your Washing Machine?

Clean your washing machine every 1–3 months depending on usage. High-usage households or families with children should perform a monthly deep clean. Front-load washer owners need to clean the rubber gasket and door seal weekly to prevent mold accumulation.

Several clear signals tell you it’s time to clean your appliance. Musty odors coming from the drum or transferred to clothes are the most obvious warning sign. You may also notice visible mold around the gasket, soap scum buildup on the drum walls, or slow drainage during cycles. If your freshly washed clothes don’t smell clean, your washer is overdue for maintenance.

The frequency depends on your washing habits. Households that wash daily generate more moisture and residue, accelerating buildup. Cold-water washes save energy but leave more detergent residue behind compared to hot-water cycles. Hard water areas produce mineral deposits faster, requiring more frequent vinegar treatments. Understanding these variables helps you set a realistic cleaning schedule that matches your specific situation.

Supplies You’ll Need

Gather natural cleaners, commercial options, and basic tools before starting. Having everything ready prevents interruptions and ensures you complete each step thoroughly.

Natural Cleaners

White vinegar — dissolves mineral deposits, breaks down soap scum, and kills odor-causing bacteria
Baking soda — deodorizes the drum and provides gentle scrubbing action
Washing soda — cuts through heavy grease and stubborn soap residue
Borax or oxygen bleach — natural disinfectants that tackle deep mold and mildew

Commercial Options

Washing machine cleaner tablets (such as Affresh or Tide Washer Cleaner) — convenient, pre-measured deep-cleaning solutions
Liquid bleach — reserved for heavy mold situations; use cautiously as it can degrade rubber seals over time

Tools

Soft microfiber cloths or sponges
An old toothbrush for scrubbing crevices
A spray bottle for applying vinegar or hydrogen peroxide
A small bucket for soaking removable parts

Choose natural methods for routine maintenance and commercial cleaners for convenience or severe buildup. Vinegar and baking soda handle most cleaning needs safely without risking damage to seals or components.

How to Clean a Top-Load Washing Machine

Run a hot water cycle with vinegar, let it soak, add baking soda, complete the cycle, then wipe and air dry. This six-step process removes residue, kills bacteria, and eliminates odors from every part of your top-load washer.

Step 1: Empty the Machine

Remove all clothing from the drum. Check the bottom of the tub for small items, debris, or pet hair that may have been left behind. A completely empty machine ensures the cleaning solution reaches all surfaces evenly.

Step 2: Fill with Hot Water

Set your washer to the hottest and longest available cycle. Allow the drum to fill completely with water, then pause the cycle. The hot water helps dissolve oils and loosens mineral deposits before you add any cleaner.

Step 3: Add Cleaner

Pour 4 cups of white vinegar directly into the filled water. Vinegar’s acetic acid breaks down hard water minerals and soap scum while killing bacteria that cause odors. Let the mixture sit for one full hour. This soaking period is critical — it allows the vinegar to penetrate buildup that a quick rinse cannot reach.

Step 4: Add Baking Soda

After the hour has passed, add 1 cup of baking soda to the water. Baking soda reacts with the vinegar to boost cleaning power and neutralize lingering odors. Resume the cycle and let it run through completely, including the rinse and spin phases.

Step 5: Wipe Down Interior

Once the cycle finishes, dampen a soft cloth with vinegar and wipe the entire drum surface. Pay special attention to the agitator fins, where fabric softener and detergent residue often hide. Remove the detergent dispenser tray if possible and scrub it with an old toothbrush to clear clogged passages.

Step 6: Air Dry

Leave the lid fully open for several hours, ideally overnight. Complete air drying prevents moisture from becoming trapped, which is the primary cause of mold and mildew in any washing machine. Make this a habit after every wash, not just cleaning days.

How to Clean a Front-Load Washing Machine

Front-load washers require gasket cleaning first, followed by two hot cycles with vinegar and baking soda, plus thorough dispenser and door maintenance. The rubber seal demands extra attention because its design traps moisture.

Step 1: Clean the Gasket

Pull back the rubber door seal carefully. You’ll likely find hair, lint, and standing moisture in the folds. Wipe these away using a cloth soaked in white vinegar. For moldy spots, dip an old toothbrush in vinegar and scrub gently. The gasket is the most common source of front-load washer odor, so never skip this step.

Step 2: Run a Hot Cycle with Vinegar

Pour 2 cups of white vinegar into the detergent dispenser drawer. Run the hottest, longest cycle available. The vinegar flows through the dispenser, internal hoses, and drum, sanitizing areas you cannot reach manually.

Step 3: Add Baking Soda to the Drum

After the vinegar cycle completes, sprinkle 1/2 cup of baking soda directly into the empty drum. Run a second hot cycle. This second treatment targets any remaining residue and leaves the interior smelling fresh rather than vinegary.

Step 4: Clean the Detergent Dispenser

Remove the dispenser tray if your model allows it. Soak the tray in warm, soapy water for 15 minutes, then scrub away residue with a toothbrush. Rinse thoroughly and dry before reinstalling. Dried detergent in the dispenser can block proper flow and create a breeding ground for bacteria.

Step 5: Wipe and Dry

Use a clean, dry cloth to wipe the drum interior and the glass door. Leave the door ajar approximately 6 to 8 inches to allow continuous airflow. Unlike top-load lids, front-load doors seal tightly when closed, so keeping them slightly open is essential for moisture control.

Deep Cleaning the Drum, Gasket, and Filter

For stubborn buildup, use washing soda with borax on the drum, apply baking soda paste to the gasket, and clear the drain pump filter every 2–3 months. Deep cleaning reaches the hidden areas where routine maintenance cannot.

Cleaning the Drum

When vinegar and baking soda aren’t enough for heavy residue, add 2 tablespoons of washing soda and 2 tablespoons of borax or oxygen bleach directly into the drum. Run the hottest, longest cycle. Washing soda cuts through greasy buildup that accumulates from fabric softeners and body oils on clothing. Borax adds disinfecting power without the harshness of chlorine bleach. This combination is particularly effective in hard water regions where mineral scale is severe.

Cleaning the Gasket (Front-Load)

Inspect the rubber seal closely for black mold or persistent mildew. Create a thick paste using baking soda and a small amount of water. Apply the paste to moldy areas and let it sit for 15 minutes. Scrub with a toothbrush, then wipe away with a vinegar-soaked cloth. For severe mold, spray 3% hydrogen peroxide directly on the affected area, wait 10 minutes, then wipe clean. Hydrogen peroxide kills mold spores without degrading the rubber.

Cleaning the Drain Pump Filter

The drain pump filter catches debris before it enters your plumbing system. Locate the filter access panel, usually on the bottom front of the machine. Place a towel and a shallow pan underneath to catch water. Unscrew the filter cap slowly — water will begin to drain. Remove the filter and clear away lint, coins, hair, and other debris. Rinse the filter under running water and reinstall it securely. A clogged filter causes slow drainage, standing water, and musty odors that cleaning the drum alone cannot fix.

How to Remove Bad Smells and Mold Naturally

Natural methods using vinegar, baking soda, washing soda, and hydrogen peroxide eliminate odors and mold without damaging your washer. These approaches are safer for rubber seals and the environment than harsh chemical alternatives.

Vinegar and Baking Soda Method

Vinegar’s acidity dissolves mineral buildup and kills odor-causing bacteria. Baking soda’s mild alkalinity scrubs away sticky residue and neutralizes acidic odors. Together they create a complete cleaning system: vinegar breaks down the problem, and baking soda removes and deodorizes what remains. This method works for routine maintenance and moderate buildup.

Washing Soda and Borax Method

Washing soda (sodium carbonate) cuts through grease and soap scum more aggressively than baking soda. Borax acts as a natural disinfectant and deodorizer. Combine 2 tablespoons of each in the drum and run a hot cycle. This pairing excels in households that use fabric softener or wash heavily soiled work clothes regularly.

Hydrogen Peroxide for Mold

When mold appears on the gasket or in dispenser trays, 3% hydrogen peroxide provides targeted treatment. Spray it directly on moldy areas, let it sit for 10 minutes, then wipe away. Unlike bleach, hydrogen peroxide breaks down into water and oxygen, leaving no harmful residue. It also penetrates porous rubber surfaces better than many commercial cleaners.

Essential Oils (Optional)

Add 5 to 10 drops of tea tree oil or lemon essential oil to your vinegar solution for a fresh scent and extra antibacterial properties. Tea tree oil contains natural compounds that inhibit mold growth. Lemon oil adds a clean, citrus fragrance while providing mild antimicrobial benefits. These oils are optional enhancements, not replacements for the core cleaning process.

Maintenance Tips to Keep Your Washer Fresh

Prevent mold and odors by controlling moisture, using correct detergent amounts, and establishing simple post-wash habits. Maintenance takes less time than deep cleaning and extends your machine’s lifespan.

Leave the door or lid open after every wash cycle. This single habit reduces humidity inside the drum by allowing air circulation. Even a few inches of opening makes a significant difference in moisture levels.

Use the correct amount of HE detergent. Excess detergent leaves residue that feeds bacteria and creates soap scum. Follow the manufacturer’s measurement guidelines rather than filling the cap to the top. If you see suds remaining after a cycle, you’re using too much.

Remove clothes promptly after the cycle ends. Damp fabrics sitting in a closed drum create the perfect environment for mildew growth. Set a timer if needed to transfer clothes to the dryer within 30 minutes.

Wipe the gasket and door after each use if you own a front-load washer. A quick 10-second wipe removes the moisture that mold needs to grow. Keep a cloth nearby to make this effortless.

Run a monthly cleaning cycle with vinegar even when the machine smells fine. Preventive maintenance stops buildup before it becomes visible or odorous. Think of it as changing the oil in your car — regular attention prevents costly problems.

Clean the drain pump filter every 2–3 months. Mark your calendar to ensure this overlooked task happens consistently. A clear filter protects your pump motor and maintains proper drainage speed.

Replace liquid fabric softener with wool dryer balls. Fabric softener leaves a waxy coating inside the drum and on clothing. Dryer balls soften fabrics naturally without chemical buildup.

FAQs About How to Clean a Washing Machine

Can I use bleach instead of vinegar?

Yes, bleach works for heavy mold, but vinegar is safer for regular use. Bleach kills mold effectively but can degrade rubber seals and gaskets over repeated applications. Vinegar dissolves mineral deposits and kills bacteria without damaging components. For routine monthly cleaning, vinegar is the better choice. Reserve bleach for severe mold outbreaks and use it sparingly.

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

Front-load washers have airtight rubber seals that trap moisture and create ideal mold conditions. The horizontal drum design uses a gasket to prevent water leakage during operation. This seal holds water and humidity between washes. Top-load lids do not seal airtight, allowing natural evaporation. Weekly gasket wiping and door ventilation are essential for front-load owners.

Is it safe to put vinegar in the detergent drawer?

Yes, vinegar is safe in the detergent drawer, but rinse the drawer afterward. Vinegar flows through the same internal pathways as detergent and helps clean those hidden hoses. However, vinegar residue can interact with future detergent doses if left sitting. After your cleaning cycle, run water through the drawer or remove and rinse it to prevent any interaction.

What if the smell doesn’t go away after cleaning?

Persistent odors usually indicate a clogged drain pump filter or standing water in internal hoses. Remove and clean the filter thoroughly. Check that the drain hose has no kinks and is positioned correctly to prevent water from pooling. If smells continue after filter and hose inspection, mold may have penetrated deep into internal components. In that case, contact a professional appliance technician for internal cleaning or component replacement.

Can I use commercial washing machine cleaners?

Yes, products like Affresh or Tide Washer Cleaner are effective and convenient alternatives. These tablets are formulated specifically for washing machine internals and often contain surfactants and oxygen-based bleaches. They simplify the process — just add a tablet and run a hot cycle. Commercial cleaners work well for busy households or as a quarterly supplement to natural monthly cleaning. They cost more than vinegar but require less preparation.

How do I know if my washer has a drain pump filter?

Most front-load washers and some newer top-load models have accessible drain pump filters. Check the bottom front panel of your machine for a small rectangular or circular access cover. Consult your owner’s manual for the exact location and removal procedure. If your machine lacks a user-accessible filter, the pump may be sealed and require professional service for cleaning.

Will cleaning my washing machine really make my clothes cleaner?

Yes, a clean washer prevents odor transfer and residue buildup on fabrics. When the drum contains mold, bacteria, or soap scum, these contaminants redeposit onto your clothes during the wash cycle. Clean water cannot exist in a dirty container. Regular maintenance ensures that your detergent works effectively and your rinse cycles actually remove soil rather than adding it back.

Key Takeaways

Clean your washing machine every 1–3 months using vinegar and baking soda to prevent odor, mold, and efficiency loss.
Front-load washers need weekly gasket maintenance because their airtight seals trap moisture that breeds mildew.
The drain pump filter requires cleaning every 2–3 months to prevent slow drainage and persistent smells.
Leaving the door or lid open after each cycle is the simplest and most effective habit for moisture control.
Natural cleaners match commercial products for routine maintenance while being safer for rubber components and the environment.

A clean washing machine is the foundation of truly clean laundry. You can buy the best detergent and use the perfect wash settings, but if the container holding your clothes is full of mold and residue, your efforts are undermined from the start. The steps in this guide require minimal time and inexpensive supplies, yet they deliver significant returns in clothing freshness, appliance longevity, and household hygiene.

Start with a deep clean this week using the vinegar and baking soda method appropriate for your washer type. Then build the simple maintenance habits — open doors, correct detergent amounts, prompt unloading, and monthly refresher cycles — that prevent problems before they begin. Your clothes, your nose, and your washing machine will thank you.