How to Clean Dishwasher

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Your dishwasher is supposed to clean your dishes—but over time, grease, food particles, minerals, and soap buildup can make your appliance dirty, smelly, and less effective. Learning how to clean dishwasher properly is essential if you want sparkling dishes, better performance, and a longer-lasting machine.

In this step-by-step guide, you’ll learn how to clean your dishwasher, how to deep clean every part of the machine, how to clean dishwasher filters and drains, and how to fix a stinky dishwasher using natural cleaning ingredients like vinegar and baking soda.

Why Dishwashers Need Regular Cleaning

Most people assume dishwashers clean themselves. Unfortunately, that’s not true.

Over time, dishwashers collect:

  • Food debris
  • Grease
  • Mineral deposits
  • Soap scum
  • Mold and mildew
  • Hard water stains
  • Odors

This buildup leads to:

  • Bad smells
  • Cloudy dishes
  • Poor drainage
  • Reduced cleaning power
  • Clogs and expensive repairs

Regular cleaning keeps your dishwasher running like new.

How Often Should You Clean Your Dishwasher?

To keep your dishwasher in top shape:

  • Filter cleaning: Every 1–2 weeks
  • Door seals and racks: Weekly wipe-down
  • Deep cleaning cycle: Monthly
  • Drain cleaning: Every 1–3 months
  • Odor treatment: As needed

A clean dishwasher = cleaner dishes.

How to Clean Your Dishwasher (Quick Method)

If you need a fast clean before a deep cleaning, follow these steps.

1. Empty the dishwasher. Remove all dishes, racks (if removable), and utensils.

2. Wipe the interior. Use a damp microfiber cloth to remove visible food debris.

3. Run a vinegar cycle. Place a dishwasher-safe cup of white vinegar on the top rack.
Run the hottest, longest cycle.

4. Run a baking soda rinse. Sprinkle 1 cup of baking soda on the bottom of the dishwasher.
Run a short hot cycle.

This method cleans and deodorizes effectively and safely—perfect for regular maintenance.

How to Deep Clean Dishwasher (Full Interior Clean)

For a full reset, greasy buildup, or a stinky machine, follow this deeper method.

Step 1: Clean the Dishwasher Filter

The filter collects food particles. If it’s clogged, your dishes won’t get clean—so learning how to clean dishwasher filter is essential.

1. Locate the filter. Usually on the bottom of the dishwasher under the bottom rack.

2. Twist and lift. Most filters twist counterclockwise to release.

3. Soak in warm soapy water. Use a small brush (old toothbrush) to scrub off grime.

4. Rinse thoroughly. Ensure no debris remains.

5. Reinstall securely. A clean filter dramatically improves washing performance.

Step 2: Clean the Dishwasher Drain

If your dishwasher is draining slowly or smells bad, the drain may be clogged.

Steps:

  1. Remove the bottom rack.
  2. Look for food debris around the drain opening.
  3. Remove any gunk, toothpicks, noodles, or small objects.
  4. Use a damp sponge to wipe the area.
  5. Pour ½ cup baking soda into the drain.
  6. Follow with 1 cup vinegar—let fizz for 15 minutes.
  7. Pour hot water to flush it through.

This technique covers how to clean dishwasher drain safely without damaging your machine.

Step 3: Clean the Spray Arms

Spray arms can become blocked with minerals or food bits.

How to clean them:

  1. Remove spray arms if possible.
  2. Use a toothpick to clean out tiny holes.
  3. Rinse under warm water.
  4. Reinstall.

This helps restore water pressure and proper cleaning.

Step 4: Clean the Door, Rubber Gasket & Edges

Dishwasher doors and seals trap moisture and mold.

To clean:

  • Use a cloth soaked in warm soapy water
  • Scrub around the rubber gasket
  • Wipe the door edges and bottom lip

You may find hidden grime here—completely normal.

Step 5: Clean the Racks & Utensil Holders

Remove racks and utensil baskets and rinse with warm soapy water.
Scrub lightly if needed.

Step 6: Run a Vinegar Cycle

Learning how to clean dishwasher with vinegar is essential because it:

  • Breaks down grease
  • Removes mineral deposits
  • Disinfects
  • Deodorizes

Steps:

  1. Place a cup of white vinegar in a dishwasher-safe container.
  2. Put it on the top rack.
  3. Run the hottest cycle.

Never pour vinegar directly into detergent compartments—it can damage rubber parts over time.

Step 7: Run a Baking Soda Rinse

Baking soda brightens and neutralizes odors.

Steps:

  • Sprinkle 1 cup baking soda on the bottom.
  • Run a short hot cycle.

This leaves your dishwasher smelling fresh and looking clean.

How to Clean a Stinky Dishwasher

A smelly dishwasher usually means bacteria, trapped food, or mildew.

Try this odor-removal method:

1. Clean the filter. This alone removes 90% of odors.

2. Clean the drain. Baking soda + vinegar fixes most smells.

3. Wipe door seals. Mold grows in rubber gaskets.

4. Run vinegar + baking soda cycles

5. Leave the door open after cycles. This helps your dishwasher dry and prevents future odors.

Now you know how to clean a stinky dishwasher effectively and naturally.

How to Clean Dishwasher with Vinegar (Detailed Method)

Vinegar is one of the safest and most effective natural cleaners for your dishwasher.

When to use:

  • Cloudy dishes
  • Hard water residue
  • Grease buildup
  • Odors

Steps:

  1. Place a cup of vinegar on the top rack.
  2. Run a hot cycle.
  3. For extra cleaning, add baking soda afterward.

Avoid mixing vinegar with bleach—it creates toxic fumes.
And avoid using vinegar too frequently if your dishwasher has rubber-lined parts (monthly is safe).

How to Clean Exterior of Dishwasher

Stainless steel dishwashers:

  • Wipe with a damp cloth
  • Dry immediately
  • Use stainless steel cleaner or olive oil for shine

Plastic or painted exterior:

  • Use mild soap + warm water
  • Avoid abrasive cleaners

How to Maintain a Clean Dishwasher Long-Term

A few simple habits prevent smells and buildup:

1. Scrape, don’t rinse. Dishwashers actually work better with some food residue.

2. Run hot water before starting dishwasher. Ensures hot water reaches the machine immediately.

3. Avoid overloading. Water can’t reach all dishes if racks are packed tightly.

4. Use rinse aid. Prevents spots and improves drying.

5. Leave the door cracked open after cycles. Keeps moisture from turning into mildew.

Frequently Asked Questions

1. Can I use bleach in my dishwasher? Yes, only if your dishwasher does NOT have stainless steel parts.
Vinegar is safer.

2. What if my dishwasher still smells after cleaning? Check for food trapped under the filter or drain area.

3. How do I clean mold in the dishwasher? Use hot water cycles, vinegar, and baking soda. Manually scrub mold from seals.

4. Does vinegar damage dishwashers? Occasional use is safe. Do not pour directly on rubber gaskets.

Learning how to clean dishwasher correctly keeps your dishes spotless and your appliance running efficiently. Whether you’re looking up:

  • How to clean your dishwasher
  • How to clean dishwasher filter
  • How to deep clean dishwasher
  • How to clean dishwasher with vinegar
  • How to clean a stinky dishwasher
  • How to clean dishwasher drain

…this guide provides everything you need to maintain a clean, odor-free machine.