Have you ever opened your stainless steel dishwasher, hoping to find shiny dishes, but instead it smells musty, or your glasses have spots? You’re not the only one. Even the best stainless steel models require some care to stay clean and function properly. Over time, grease, soap scum, food debris, and hard water stains accumulate — not just inside, but also on the beautiful exterior. The good news is that you don’t need special tools or strong chemicals. You can make your dishwasher look good and work better again by following a few easy steps. In this guide, we will show you how to clean stainless steel dishwasher properly, both inside and outside.

Why Clean a Stainless Steel Dishwasher Regularly?

Your stainless steel dishwasher might look sleek and modern on the outside, but inside, it could be hiding a mess. If you’re noticing funky odors, cloudy glassware, or bits of food still stuck to your “clean” dishes, it’s probably overdue for a good cleaning.

Over time, leftover food particles, soap scum, and hard water minerals accumulate, especially in areas such as the filter, spray arms, and interior walls. Even the exterior can lose its shine thanks to smudges, fingerprints, and dried-on stains. A little maintenance goes a long way in keeping it looking and working like new.

Here’s why regular cleaning matters:

Improves cleaning performance

A clean dishwasher sprays water more effectively, ensuring your dishes come out spotless.

Prevents bad odors

Built-up dirt can cause unpleasant smells over time.

Extends lifespan

Regular upkeep keeps mechanical parts from getting blocked or overworked.

Keeps it looking new

Especially for stainless steel, cleaning keeps it shiny and smudge-free.

Avoids costly repairs

A dirty filter or clogged spray arms can eventually damage the pump or motor.

Cleaning your dishwasher isn’t just about looks — it’s about function, hygiene, and making sure your investment lasts for years.

Tools and Supplies You’ll Need Before You Start

Before starting to clean, make sure you have all the necessary tools. Don’t worry — most of these things are likely already in your kitchen or cleaning supplies. You don’t need special tools or costly cleaners to clean your stainless steel dishwasher. Mild and natural items, such as vinegar and baking soda, are beneficial for you.

Basic Supplies You’ll Need:

• White vinegar – Natural deodorizer and degreaser for inside the dishwasher
• Baking soda – Removes odors and gently scrubs the interior
• Dish soap – Use mild, non-abrasive dish soap for soft wiping
• Microfiber cloths – Ideal for wiping without scratching the stainless steel finish
• Old toothbrush or small brush – Perfect for scrubbing the filter, corners, and seals
• Rubber gloves – Keep your hands clean, especially when dealing with grime
• Toothpick or paperclip – To unclog spray arm holes gently

Optional (But Helpful):

• Stainless steel polish or mineral oil – To make the exterior gleam like new
• Dishwasher cleaning tablets – For monthly maintenance
• Lemon juice – A natural deodorizer and polishing agent for added freshness
• Bleach (only when needed) – For mold, but should be used with caution

Having these supplies ready will make your cleaning easy, helpful, and surprisingly enjoyable. Additionally, using mild products ensures that you won’t damage the stainless steel inside or void your dishwasher’s warranty.

Step-by-Step Interior Cleaning Process

It’s time to get your hands just a little dirty — but don’t worry, the results will be well worth it. Cleaning the inside of your stainless steel dishwasher is easier than it sounds, and when done correctly, it helps eliminate odors, boost efficiency, and bring back that like-new shine. Follow these steps to do it right.

Step 1: Empty the Dishwasher Completely

Remove all dishes, utensils, racks, and the utensil holder. You want nothing getting in the way of your deep cleaning session.

Step 2: Clean the Filter

This is one of the most important steps, yet most overlooked.

• Locate the filter at the bottom of the dishwasher (usually under the lower spray arm).
• Twist it out gently and rinse under hot water.
• Use a toothbrush and a drop of dish soap to scrub away grease or food particles.
• Let it air dry or wipe with a clean cloth.

Pro Tip: A dirty filter is a significant cause of bad smells and cloudy dishes!

Step 3: Unclog the Spray Arms

Spray arms can get blocked by food or mineral deposits, reducing cleaning power.

• Remove the spray arms (most can be gently twisted or unscrewed).
• Rinse them under water.
• Use a toothpick or paper clip to clear any holes that appear blocked.
• Shake out water and reinstall.

Step 4: Run a Vinegar Cycle

Vinegar is a natural cleaner and deodorizer that dissolves grease and limescale.

• Fill a dishwasher-safe cup with white vinegar.
• Place it on the top rack (with an otherwise empty dishwasher).
• Run the hottest cycle available.

This step cleans the interior walls, spray arms, and drainage system.

Step 5: Follow with a Baking Soda Cycle

To get rid of any smells and clean the inside gently:

• Pour 1 cup of baking soda at the bottom of the dishwasher.  
• Start a quick hot water cycle.  

You’ll be amazed at how nice and clean everything smells afterward.

Step 6: Wipe Down the Door and Seals

Use a soft cloth and warm, soapy water to clean.  

• The edges of the door and the area around the rubber seal.  
• The inside of the door is where dirt and other debris usually accumulate.  
• Any little corners or gaps?
• Make sure to dry it off afterward.  

By using these six steps, your inside will be spotless, smell nice, and work better.

How to Clean Stainless Steel Dishwasher Exterior and Make It Shine

Cleaning the inside makes your dishes shiny, but the outside of your stainless steel dishwasher also needs care. After all, it’s a prominent spot in your kitchen, and fingerprints, smudges, and water spots can quickly make it look less shiny. Fortunately, restoring it to look shiny and new is a fast and straightforward process.

Step 1: Wipe with Warm, Soapy Water

• Dampen a microfiber cloth with warm water and a drop of mild dish soap.
• Wipe the entire exterior, following the grain of the stainless steel.
• Focus on areas around the handle and control panel where fingerprints tend to accumulate.

Avoid using abrasive pads or harsh cleaners, as they can scratch the surface.

Step 2: Rinse and Dry

• Rinse the cloth with clean water and wipe again to remove any soap residue.
• Immediately dry with a clean, dry microfiber towel to prevent streaks or water marks.

This step helps restore the natural luster of the stainless steel surface.

Step 3: Polish for a Streak-Free Finish

Use one of the following to polish and protect:

• Stainless steel cleaner or polish – Apply a small amount with a cloth and buff.
• Olive oil or mineral oil – Rub a few drops on a soft cloth and work in the direction of the grain.
• Vinegar spray followed by oil – Clean with vinegar first, then polish with oil for added brilliance.

Quick Tip: Always polish in long strokes that follow the grain to avoid swirls or streaks.

Keeping the exterior clean not only makes your kitchen look better but also protects the stainless steel from corrosion and wear over time.

Advanced Tips and Problem Fixes for a Cleaner Dishwasher

Even after regular cleanings, you may encounter some stubborn issues that persist. From lingering smells to hard water buildup, these common problems can make your dishwasher less effective and less pleasant to use. Let’s fix them with smart, proven solutions — without damaging your stainless steel interior.

Problem 1: Funky Odors That Keep Coming Back

Fix:

• Remove and clean the filter again (food particles often hide deep inside).
• Leave the dishwasher door slightly ajar after each wash to let it air out.
• Run a vinegar + baking soda cleaning cycle every month.
• Sprinkle a few drops of lemon juice inside after a cycle for a natural, fresh scent.

Problem 2: Hard Water Spots or Limescale

Fix:

• Place a bowl of white vinegar, safe for dishwashers, in the machine and run a hot wash cycle.  
• For tough buildup, use a store-bought dishwasher cleaner that is safe for stainless steel.  
• If you have hard water, consider using a water softener or rinse aid regularly.

Problem 3: Mold or Mildew Around Gasket and Corners

Fix:

• Mix 1 cup of water, ½ cup of vinegar, and two tablespoons of baking soda in a spray bottle.
• Spray on moldy areas (especially around the door gasket) and scrub with a toothbrush.
• For severe cases, use a mild bleach solution (1 tablespoon of bleach in 1 quart of water). However,. However, never mix bleach with vinegar, and always use it in a well-ventilated area.

Problem 4: Spray Arms Not Spinning or Clogged

Fix:

• Remove the spray arms and clean each nozzle with a toothpick.
• Soak in vinegar to dissolve mineral deposits.
• Shake to remove trapped debris and rinse well before reinstalling.

Problem 5: Stainless Steel Still Looks Dull After Cleaning

Fix:

• Use a stainless steel polish or try a DIY mix: 1 part vinegar + 1 part water in a spray bottle.
• Spray and wipe with a microfiber cloth.
• Buff with a drop of mineral or olive oil for extra shine.

With these advanced solutions, your stainless steel dishwasher will not only be clean — it will remain efficient, fresh, and beautiful, no matter what challenges arise.

Maintenance Routine for Long-Term Clean Performance

Knowing how to clean stainless steel dishwasher properly is one thing, but keeping it clean over time is what extends its lifespan and keeps your dishes spotless. The good news? You don’t have to clean it deep every week. A simple, manageable routine can prevent buildup, odors, and grime before they become significant issues.

Here’s a breakdown of a realistic cleaning schedule:

Weekly Dishwasher Maintenance

• Clean the filter — Rinse under hot water and remove any trapped food particles.
• Wipe the door edges and gasket — Prevents mold and grime buildup.
• Check for leftover food bits — Especially in spray arms or bottom corners.

Monthly Deep Cleaning Steps

• Run a vinegar cycle — use 1 cup of vinegar on the top rack, set to the hottest setting.
• Follow with a baking soda cycle — sprinkle a cup on the bottom and use a short, hot cycle.
• Wipe down the interior and door — Use a microfiber cloth to remove film and residue.

Every 3–6 Months

• Deep clean the spray arms — Remove, rinse, unclog nozzles.
• Polish the stainless steel exterior — With mineral oil or stainless steel cleaner.
• Use a dishwasher cleaner tablet — Helps fight limescale and grease in hard-to-reach areas.

Bonus Tips to Keep Your Dishwasher Clean

• Use the right detergent – Avoid cheap or off-brand pods that leave residue.
• Don’t overload – It blocks the spray arms and leads to poor cleaning.
• Rinse large food chunks off dishes, especially those made from starchy or greasy foods.
• Leave the door slightly open – This helps it air dry and prevents odors.

Following this easy schedule means you won’t have to wonder again how to clean stainless steel dishwasher — because yours will already be in top shape.

FAQs

Must read: How to Clean Maytag Dishwasher: 6 Easy Proven Steps

Bottom Line

Knowing how to clean stainless steel dishwasher is vital for more than just making it look nice. It helps your dishwasher work well, smell good, and last longer. Using a few everyday items and an easy routine, you can clean away grease, smells, and dirt without any trouble. Get into the habit of checking your dishwasher monthly, and you’ll have clean dishes every time. Now that you know what to do, don’t wait—start cleaning today and see how much better it feels.

👉 Share this guide, bookmark it, and follow for more smart cleaning tips that truly work!

Sources

https://homegeargeek.com/how-to-clean-stainless-steel-dishwasher/

https://www.chefsresource.com/how-to-clean-stainless-dishwasher

https://homegeargeek.com/how-to-clean-stainless-steel-dishwasher-interior

https://homegeargeek.com/how-to-clean-the-inside-of-my-stainless-steel-dishwasher

https://www.chefsresource.com/faq/how-to-clean-the-inside-of-stainless-steel-dishwasher/

https://cookupexperts.com/how-to-clean-stainless-steel-dishwasher/

https://www.architecturaldigest.com/story/how-to-clean-stainless-steel

https://www.southernliving.com/how-to-clean-stainless-steel-appliances-11772156