How to remove bad odors from a washing machine

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Introduction

If your washing machine smells more like a damp basement than fresh laundry, you’re not alone. Over time, detergent residue, fabric softener buildup, lint, and trapped moisture can create the perfect environment for mold and bacteria. The good news is, you don’t have to live with that unpleasant odor—or replace your machine. This guide will show you exactly how to remove bad odors from a washing machine using effective, budget-friendly methods that work for both front load and top load washers.

Why Washing Machines Develop Bad Odors

Even though washing machines are designed to clean clothes, they also need regular cleaning themselves. Common causes of washer odors include:

  • Detergent and Fabric Softener Buildup: Leftover residue clings to the drum, hoses, and detergent drawer.
  • Mold and Mildew Growth: Moisture trapped inside creates the perfect breeding ground.
  • Lint and Debris: Small items, dirt, and lint can collect in the gasket, filter, or drain.
  • Standing Water: Poor drainage leaves stagnant water in the tub or pump.

Removing odors not only improves the smell of your laundry but also helps your machine run more efficiently and last longer.

Step-by-Step Guide to Removing Bad Odors from a Washing Machine

1. Empty the Machine and Inspect Problem Areas

Before cleaning, make sure the washer is completely empty. Look for visible signs of mold, mildew, or residue in key spots:

  • The drum
  • Around the door gasket (front loaders)
  • The detergent drawer
  • Inside the filter or drain pump

2. Clean the Gasket (Front Load Washers)

The rubber door seal on front loaders is a common odor culprit.

How to clean it:

  1. Pull back the rubber gasket to reveal hidden areas.
  2. Wipe away any visible debris or lint.
  3. Spray a 50/50 mixture of white vinegar and water directly onto the gasket.
  4. Scrub gently with an old toothbrush, paying attention to folds and crevices.
  5. Wipe dry with a clean microfiber cloth.

3. Remove and Clean the Detergent Drawer

The detergent dispenser can trap soap scum and softener residue that start to smell over time.

How to clean it:

  1. Pull the drawer out completely (check your manual if needed).
  2. Soak in warm water mixed with one cup of vinegar for 15–20 minutes.
  3. Scrub with a toothbrush to remove buildup.
  4. Rinse and dry before reinserting.

4. Run a Vinegar Cleaning Cycle

Vinegar is a natural deodorizer and mold killer that works for both front and top load machines.

How to do it:

  1. Pour 2 cups of white vinegar directly into the drum.
  2. Set the washer to the hottest, longest cycle.
  3. Let the cycle run completely without adding clothes.

This step helps dissolve detergent buildup and kill odor-causing bacteria.

5. Follow with a Baking Soda Rinse

Baking soda neutralizes any lingering odors and adds gentle scrubbing action.

How to do it:

  1. Add ½ cup of baking soda directly into the drum.
  2. Run a short, hot-water cycle.
  3. Leave the door or lid open afterward to air dry the machine.

6. Clean the Filter and Drain Pump

If your washer has a filter or trap, it may be harboring lint, hair, and small objects that cause bad smells.

How to clean it:

  1. Locate the filter (often behind a small door near the bottom front).
  2. Place a towel and shallow pan underneath to catch water.
  3. Open the filter and remove debris.
  4. Rinse under warm water and replace securely.

7. Wipe the Exterior and Control Panel

Finish the cleaning process by wiping the outside of the washer with a vinegar-water solution. This keeps the whole unit looking fresh and prevents dust buildup.

Common Mistakes to Avoid

  1. Leaving the Door or Lid Closed
    • Mistake: Trapping moisture inside after each load.
    • Solution: Keep the washer door or lid open between uses to allow airflow.
  2. Using Too Much Detergent
    • Mistake: Excess soap creates residue that holds odors.
    • Solution: Follow the recommended amount and use HE detergent in high-efficiency machines.
  3. Skipping Regular Cleaning
    • Mistake: Waiting until odors are strong before cleaning.
    • Solution: Run a cleaning cycle once a month to prevent buildup.
  4. Ignoring the Gasket or Filter
    • Mistake: Focusing only on the drum and forgetting hidden odor traps.
    • Solution: Include the gasket, detergent drawer, and filter in your cleaning routine.
  5. Relying Only on Scent Boosters
    • Mistake: Masking odors instead of removing the cause.
    • Solution: Clean the machine thoroughly to eliminate smells at the source.

Extra Laundry Tips & Hacks

  • Dry the Drum and Gasket: After the last load of the day, wipe down the inside of the drum and gasket to remove excess moisture.
  • Use Natural Deodorizers: Place a small bowl of baking soda inside the drum (with the machine off) overnight to absorb odors.
  • Switch to Powder Detergent: Liquid detergents can leave more residue, while powders often rinse cleaner.

For more cleaning tips, see our “How to Clean a Front Load Washer Naturally” guide for a full natural cleaning routine.

Conclusion

Learning how to remove bad odors from a washing machine keeps your laundry fresh, extends the life of your appliance, and prevents unpleasant smells from coming back. With regular maintenance—using vinegar, baking soda, and a few simple tools—you can enjoy a clean, odor-free washer all year round.

Pro Tip: The best way to fight washer odors is to prevent them. A monthly natural cleaning cycle and good airflow will keep your machine smelling fresh.

Bookmark this guide so you can quickly reference it next time your washer needs a refresh.