How to Deep Clean a Smelly Washing Machine with Vinegar and Baking Soda

Why Your Washing Machine Needs a Deep Clean

Over time, your washing machine accumulates detergent residue, fabric softener buildup, mold, and mildew. This not only causes unpleasant odors but can also affect washing performance and even leave clothes smelling musty. Regular deep cleaning every few months extends the life of your appliance and keeps laundry fresh. This guide walks you through a simple, effective method using home staples like vinegar and baking soda, plus when to use specialized cleaning products.

Step 1: Gather Your Supplies

You'll need white distilled vinegar, baking soda, a microfiber cloth, an old toothbrush, and optionally a washing machine cleaner for extra scrubbing power. Avoid using bleach with vinegar as it creates toxic fumes.

Step 2: Clean the Dispenser Drawer and Gaskets

Remove the detergent drawer (usually by pressing a tab). Soak it in hot water with a cup of vinegar for 30 minutes, then scrub with an old toothbrush. For front-loaders, wipe down the rubber gasket door seal thoroughly, pulling back the lip to remove hidden debris and mold.

Pro Tip: Use a Brush for Tight Spots

A toothbrush or small scrub brush is perfect for reaching grime in the gasket folds. Rinse with water and dry completely.

Step 3: Clean the Drum with Vinegar and Baking Soda

Set your washer to the hottest water cycle on the largest load setting. Add two cups of white vinegar directly into the drum (not the detergent dispenser). For front-loaders, pour into the drum. Start the cycle and let it run for a minute to mix, then pause for 30 minutes to let the vinegar break down mineral deposits and soap scum. After the pause, add half a cup of baking soda to the drum and resume the cycle. The combination fizzes and loosens stubborn residue.

Step 4: Run a Rinse Cycle

Once the vinegar/baking soda cycle finishes, run a second hot water rinse cycle to remove any remaining solution. This ensures no residual smell or cleaning agents remain.

Step 5: Clean the Filter and Drain Pump (If Accessible)

Many modern washers have a filter or drain pump trap. Check your manual and clean out lint, coins, and debris. A clogged filter can cause odors and poor drainage. Wipe it with vinegar and replace.

When to Use a Commercial Cleaner

For heavy mold or persistent smells, a dedicated washing machine cleaner tablet can be more effective than vinegar alone. These tablets contain enzymes and degreasers that target biofilm inside the drum and hoses. Follow the package directions, usually tossing one tablet into the empty drum and running a hot cycle.

Maintenance Tips to Keep Odors Away

• Leave the door open after every wash for at least an hour to air out moisture.
• Use the correct amount of high-efficiency (HE) detergent to avoid oversudsing.
• Wipe the gasket dry weekly.
• Run a monthly hot water cycle with a cup of vinegar or a cleaner tablet.
• Clean the lint filter on a regular basis.

When to Call a Professional

If odors persist after deep cleaning and maintenance, there may be a more serious issue like a blocked drain hose, a failing pump, or mold inside the internal drum. These repairs often require a technician. However, regular cleaning can prevent most smell problems.

Conclusion

Deep cleaning your washing machine with vinegar and baking soda is an affordable, non-toxic way to remove odors and buildup. For tough cases, supplement with a commercial cleaner. By following these steps monthly, your machine will stay fresh, and your clothes will smell their best. Keep a pack of washing machine cleaner tablets handy for quick maintenance.