How to Get Rid of Washing Machine Mold and Odors

Washing machines are warm, damp environments — perfect for mold and mildew growth. Front-load washers are especially susceptible because their horizontal drum and airtight door seal trap moisture between cycles. But top-load washers can develop odors too, especially around the agitator and tub rim.

The result: clothes come out of the wash smelling musty, and you may notice black spots on the rubber door gasket, a slimy residue inside the drum, or a sour smell when you open the machine.

The rubber gasket around a front-load washer door is where mold hides most aggressively. Pull back the folds of the gasket and you'll likely find black mold, hair, and debris trapped inside.

How to clean it: Mix equal parts white vinegar and water in a spray bottle. Spray the gasket thoroughly, especially inside the folds. Let it sit for 10 minutes. Scrub with an old toothbrush, then wipe clean with a microfiber cloth. For stubborn black mold, use a paste of baking soda and water instead.

Run the hottest cycle your washer offers (many models have a dedicated "Clean" or "Tub Clean" cycle). Add one of the following cleaning agents:

• Option A: 2 cups of white vinegar directly in the drum
• Option B: A commercial washing machine cleaner (Affresh, OxiClean, etc.)
• Option C: 1/2 cup of bleach in the bleach dispenser (do NOT mix bleach with vinegar)

Run the cycle empty — no clothes — on the hottest setting. This kills mold spores throughout the internal plumbing.

Killing existing mold is only half the battle. These habits prevent it from returning:

• Leave the door ajar after every wash to let the drum air out
• Wipe the gasket and door glass after each use to remove standing water
• Remove wet clothes promptly — don't leave them sitting in the drum
• Use HE detergent in HE machines — regular detergent creates excess suds that leave residue
• Run a monthly cleaning cycle with vinegar or a washing machine cleaner
• Don't overuse detergent — more soap doesn't mean cleaner clothes; excess detergent feeds mold

Is washing machine mold dangerous?
Mold exposure can trigger allergic reactions, respiratory irritation, and skin issues in sensitive individuals. Clothes washed in a moldy machine can carry mold spores, causing skin reactions when worn.

Can mold damage my washing machine?
Persistent mold can deteriorate the rubber door gasket over time, eventually requiring gasket replacement. It can also clog drain paths and create persistent odor problems.

Why do front-load washers get more mold than top-load?
Front-load washers use an airtight door seal that traps moisture inside the gasket folds. Top-load washers have better natural ventilation because heat rises and escapes through the top.