How to Clean Dishwasher Interior: Easy Steps for a Sparkling Finish

November 11, 2025
Written By handykitchen

Your dishwasher works hard to keep your dishes spotless, but what about its own interior? Over time, food particles, grease, and hard water deposits build up inside, making your dishwasher less efficient and even causing unpleasant odors.

If you want your dishwasher to run smoothly and your dishes to come out sparkling every time, you need to clean its interior regularly. You’ll discover simple, effective steps to clean your dishwasher’s interior quickly and easily. Keep reading to learn how to refresh your dishwasher and extend its lifespan—your kitchen will thank you!

How to Clean Dishwasher Interior: Easy Steps for a Sparkling Finish

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Gather Necessary Supplies

Cleaning the inside of your dishwasher helps keep it working well. Before you start, gather all the supplies you need.

Having the right tools ready makes the cleaning process faster and easier.

Dishwasher Cleaner Or White Vinegar

You need a cleaner to remove grease and buildup inside your dishwasher. You can use a special dishwasher cleaner or white vinegar.

White vinegar helps break down hard water spots and soap scum safely.

Baking Soda

Baking soda helps remove odors and stains inside the dishwasher. It also works as a gentle scrub.

Soft Brush Or Toothbrush

Use a soft brush or an old toothbrush to clean small parts and corners. This helps remove stuck-on food and grime.

Microfiber Cloth Or Sponge

A microfiber cloth or sponge is useful for wiping down surfaces inside the dishwasher. It removes dirt without scratching.

Gloves

Wear gloves to protect your hands from cleaning chemicals and grime. Gloves keep your skin safe and clean.

Toothpick Or Small Tool

A toothpick or small tool helps clear debris from tiny holes and drains. This keeps water flowing properly.

Empty The Dishwasher

Emptying the dishwasher is an important first step before cleaning its interior. It allows you to access all parts inside without obstruction.

Make sure to remove all dishes, utensils, and racks. This helps prevent damage and makes cleaning easier.

Remove All Dishes And Utensils

Take out every plate, glass, and utensil. Check all corners for small items like lids or caps that might be stuck.

Take Out The Racks

Most dishwashers have removable racks. Pull these out gently to clean around and underneath them.

  • Slide the bottom rack out completely.
  • Lift the top rack to remove it if possible.
  • Set racks aside for separate cleaning.

Check And Clear The Drain Area

Look at the drain area at the bottom of the dishwasher. Clear away any food bits or debris to avoid clogs.

Common Drain BlockersHow to Remove
Food scrapsUse a soft cloth or brush
Broken glass piecesWear gloves and carefully pick up
Small utensilsRemove by hand

Remove And Clean The Racks

Cleaning the dishwasher racks helps keep your dishwasher fresh and working well. Dirt and food bits can build up on the racks over time.

Removing and cleaning the racks is easy. It prevents bad smells and keeps dishes cleaner.

Remove The Racks Carefully

Open your dishwasher door fully to access the racks. Pull the bottom rack out slowly to avoid breaking the wheels.

Lift the top rack if your dishwasher has one. Some racks have stops or clips that you must release first.

  • Check for clips or stops on the racks
  • Pull racks out straight and gently
  • Lift top rack if needed

Wash The Racks With Warm Soapy Water

Fill a large sink or tub with warm water and mild dish soap. Soak the racks for 10 to 15 minutes to loosen dirt and grease.

Use a soft brush or sponge to scrub all rack parts. Pay attention to corners and wheels where grime can hide.

  • Use warm water and mild soap
  • Soak racks for 10-15 minutes
  • Scrub all surfaces gently
  • Focus on corners and wheels

Rinse And Dry The Racks

Rinse the racks with clean water to remove soap and loosened dirt. Shake off extra water before drying.

Dry the racks with a clean towel or let them air dry completely before putting them back in the dishwasher.

  • Rinse racks with clean water
  • Shake off excess water
  • Dry with a towel or air dry
How to Clean Dishwasher Interior: Easy Steps for a Sparkling Finish

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Inspect And Clean The Spray Arms

Spray arms in your dishwasher help clean dishes by spraying water. Over time, they can get clogged with food or mineral deposits. Cleaning them keeps your dishwasher working well.

Check the spray arms regularly to make sure water flows freely. This guide shows you how to detach and clean them carefully.

Detach Spray Arms

Start by removing the spray arms from your dishwasher. Most models allow you to pull or unscrew them easily. Detaching the spray arms gives you full access for cleaning.

  1. Open the dishwasher door fully.
  2. Locate the spray arms at the bottom and sometimes in the middle or top racks.
  3. Check for clips or screws holding the spray arms in place.
  4. Gently pull or unscrew the spray arms to remove them.
  5. Place the spray arms on a clean surface for cleaning.

Rinse And Unclog Holes

After detaching, rinse the spray arms with warm water. This removes loose dirt and food particles. Check each hole to find any clogs that block water flow.

  • Use a small brush or toothpick to clear blocked holes.
  • Soak the spray arms in white vinegar for 15 to 30 minutes to dissolve mineral buildup.
  • Rinse the spray arms again under running water.
  • Ensure all holes are open and water flows through easily.
  • Dry the spray arms before reattaching them to the dishwasher.

Clean The Dishwasher Filter

Cleaning the dishwasher filter keeps your appliance working well. A clean filter stops food and debris from clogging the system.

Regular filter care helps your dishes come out cleaner and your dishwasher last longer.

Locate The Filter

The filter is usually at the bottom of the dishwasher. Open the door and remove the bottom rack to see it clearly.

  • Look near the spray arm or the base of the dishwasher tub.
  • The filter may be a round or rectangular mesh part.
  • Check your dishwasher manual if you have trouble finding it.

Wash And Scrub

After removing the filter, rinse it under warm water. Use a soft brush or sponge to scrub away stuck food and grease.

Cleaning ToolUse For
Soft BrushRemoving stuck particles
Warm WaterRinsing filter parts
Mild SoapBreaking down grease

After cleaning, put the filter back carefully. Make sure it fits well to avoid leaks or poor cleaning results.

Wipe Down The Interior Walls

Cleaning the dishwasher’s interior walls helps keep it fresh. Dirt and food particles can build up inside.

Regular wiping prevents bad smells and improves cleaning performance.

Gather Cleaning Supplies

Use a soft cloth or sponge to avoid scratching. Mild dish soap helps remove grease and grime.

  • Soft microfiber cloth or sponge
  • Mild dish soap
  • Warm water
  • Old toothbrush (for corners)
  • Clean towel for drying

Prepare The Cleaning Solution

Mix a few drops of mild dish soap with warm water. This gentle solution cleans without damage.

Use a small bowl or bucket to hold the cleaning mixture.

Wipe The Interior Walls

Dip the cloth or sponge in the soapy water and wring out excess liquid. Gently wipe all interior walls.

Pay attention to corners and edges where grime often collects. Use the toothbrush to scrub small areas.

Rinse And Dry The Walls

Use a clean cloth dampened with plain water to remove soap residue. Soap left inside can cause suds during washing.

Dry the walls with a towel to stop moisture buildup and prevent mold growth.

Use Vinegar For Deep Cleaning

Cleaning your dishwasher interior regularly keeps it working well. Vinegar is a natural cleaner that removes grime and odors.

Using vinegar for deep cleaning is easy and safe. It helps get rid of buildup inside the dishwasher.

Place A Cup Of Vinegar

Take a cup of white vinegar and place it on the top rack of your empty dishwasher. The vinegar will break down hard water spots and grease.

Make sure the dishwasher is empty before adding vinegar. This allows the vinegar to clean all parts inside.

Run A Hot Cycle

Close the dishwasher door and run a full hot water cycle. The heat helps the vinegar clean deeply.

The hot cycle will remove buildup and freshen the dishwasher’s interior. After the cycle ends, your dishwasher will smell clean.

How to Clean Dishwasher Interior: Easy Steps for a Sparkling Finish

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Baking Soda For Odor Removal

Dishwashers can develop bad smells over time. Baking soda helps remove these odors. It is safe and easy to use inside your dishwasher.

Using baking soda keeps your dishwasher fresh and clean. It works by neutralizing the bad smells inside the machine.

Sprinkle Baking Soda

Start by sprinkling about one cup of baking soda across the bottom of your empty dishwasher. Make sure the baking soda is spread evenly.

This step helps to absorb odors and break down grime inside the dishwasher. Do not add any other cleaning products at this stage.

Run A Short Cycle

After sprinkling baking soda, run a short hot water cycle. Use the dishwasher’s regular cleaning setting without detergent.

The hot water activates the baking soda. It cleans and deodorizes the interior, leaving your dishwasher smelling fresh.

Check And Clean The Door Seal

The door seal keeps water inside the dishwasher. Dirt and mold can build up on it over time. Cleaning the seal helps your dishwasher work well.

Regularly check the seal for damage or dirt. This keeps your dishwasher fresh and stops leaks.

Inspect The Seal

Look carefully at the door seal for cracks or tears. These can cause leaks during washing. Also, check for any mold or food bits stuck in the seal.

If you see damage, you may need to replace the seal. Clean any dirt or mold before it spreads.

Wipe With A Damp Cloth

Use a soft cloth dampened with warm water to clean the seal. Wipe gently to remove dirt and mold. Avoid harsh chemicals that could damage the seal.

  • Wet the cloth with warm water
  • Wipe around the whole seal carefully
  • Dry the seal with a soft towel
  • Repeat cleaning regularly to prevent buildup

Maintain Regular Cleaning Schedule

Keeping your dishwasher clean helps it work well and last longer. Dirt and food bits can build up inside.

Cleaning your dishwasher regularly stops bad smells and poor cleaning results. It is easy to do.

Set A Weekly Cleaning Routine

Choose one day each week to clean your dishwasher’s interior. This keeps dirt from piling up.

Run a cleaning cycle or wipe parts inside the dishwasher to keep it fresh and clean.

  • Remove food scraps from the filter
  • Wipe door seals and edges
  • Run an empty cycle with dishwasher cleaner or vinegar

Use Monthly Deep Cleaning

Once a month, do a deep clean to remove grease and scale. This helps your dishwasher last longer.

Use a dishwasher cleaner or a cup of white vinegar placed on the top rack. Run a full hot cycle.

  • Check spray arms for clogs and clean them
  • Clean the filter and drain area thoroughly
  • Wipe the interior walls and door

Keep Track With A Cleaning Calendar

Use a calendar or reminder app to mark cleaning days. This helps keep your schedule on track.

Regular reminders make it easy to keep your dishwasher clean without forgetting.

  • Set weekly reminders for light cleaning
  • Set monthly reminders for deep cleaning
  • Note any repairs or issues found during cleaning

Frequently Asked Questions

How Often Should I Clean My Dishwasher Interior?

You should clean your dishwasher interior every 1 to 3 months. Regular cleaning prevents buildup of food particles and hard water stains. It helps maintain efficiency and ensures your dishes come out spotless every time.

What Is The Best Way To Clean Dishwasher Interior?

Use a mixture of white vinegar and baking soda. Run a hot water cycle with vinegar in a cup on the top rack. Then sprinkle baking soda on the bottom and run a short cycle. This removes odors and cleans grime effectively.

Can I Use Bleach To Clean My Dishwasher Interior?

Avoid using bleach as it can damage dishwasher parts. Instead, use natural cleaners like vinegar or commercial dishwasher cleaning products. Bleach may also cause harmful fumes when mixed with detergent or other chemicals.

How Do I Remove Hard Water Stains Inside The Dishwasher?

To remove hard water stains, use white vinegar or a dishwasher cleaner. Run a hot cycle with vinegar placed in a bowl on the top rack. For tough stains, scrub with a soft brush after the cycle ends.

Conclusion

Cleaning your dishwasher’s interior keeps it working well. Regular care stops bad smells and buildup. Use simple steps to remove grime and food bits. Check filters and spray arms often for blockages. Run a cleaning cycle with vinegar or baking soda.

Clean dishwashers last longer and clean dishes better. Make cleaning a habit every month or so. A clean dishwasher means cleaner, fresher dishes every time. Easy to do, and worth the effort. Try it today for a fresh kitchen helper.

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