Washing machine smells like mildew? how to clean

There's nothing quite like pulling out "clean" laundry only to find it smells worse than before you washed it. That funky, musty odor the one that hits you like a damp towel to the face means one thing: your washing machine smells like mildew. And honestly? It's a super common problem, especially with front loaders. But don't you worry, you're not doomed to a lifetime of stinky clothes. We're going to dive deep into how to clean that washing machine and banish the mildew smell for good. Here's the thing mildew loves dark, damp places, and your washing machine, particularly if it's a high efficiency front loader, can be a five star resort for the stuff. But even top loaders aren't immune. Luckily, getting rid of it usually doesn't require a repairman. You can totally tackle this yourself.

Let's Get Rid of That Stink: Your Step by Step Washing Machine Cleaning Guide

First things first, gather your supplies. You're gonna need some distilled white vinegar, baking soda, a scrub brush or old toothbrush, a couple of clean cloths, and maybe some bleach if things are really dire. And a little elbow grease, of course!

Preparing Your Washer for a Deep Clean

Before you start any serious cleaning, let's prep the machine.

1. Empty the Washer: Make absolutely sure there aren't any clothes or stray socks hanging out inside. Trust me, you don't want to accidentally bleach your favorite shirt.
2. Unplug It: Safety first, always. Just pull the plug from the wall outlet.
3. Quick Wipe Down: Take a damp cloth and wipe down any immediately visible grime or residue in the drum. This just gets the surface stuff out of the way.

The Best Ways to Attack Mildew in Your Washer

You've got a couple of solid options here, depending on how stubborn that smell is. I always recommend starting with the vinegar and baking soda combo because it's powerful and less harsh.

Option 1: The Vinegar & Baking Soda Power Combo (My Personal Favorite)

This method is a classic for a reason. It's effective, and you probably already have both ingredients sitting in your pantry.

1. Vinegar Cycle:
   • For a top loader: Fill the washer with hot water on the highest setting. Add about 4 cups of distilled white vinegar directly to the drum. Let it agitate for a minute, then pause the cycle and let it soak for at least an hour two hours is even better if you've got time. Then, let the cycle complete.
   • For a front loader: Pour 2 cups of distilled white vinegar into the detergent dispenser. Run an empty cycle on the hottest water setting possible. Some machines even have a "Tub Clean" or "Self Clean" cycle, which is perfect for this!
2. Scrub the Gasket and Dispenser (Front Loaders, especially): While the vinegar is doing its thing, or after the first cycle, pay special attention to the rubber gasket around the door. This is a notorious hiding spot for mold and mildew. Dip an old toothbrush or scrub brush into some undiluted vinegar and scrub away all that slimy buildup. Don't forget the detergent dispenser drawer pull it out if you can and give it a good scrub with vinegar and warm water.
3. Baking Soda Cycle:
   • For both types of washers: Once the vinegar cycle is complete, run another empty cycle on the hottest water setting. This time, add 1 cup of baking soda directly to the drum. Baking soda will help neutralize any lingering odors and scrub away residue.

After these two cycles, your washer should be smelling a whole lot fresher. If you want to really hit it with some extra cleaning power, you can grab a dedicated washing machine cleaner. These often come in tablet form and are designed to break down detergent buildup and scum.

Option 2: Bleach – For the Really Stubborn Smells

If vinegar and baking soda just aren't cutting it, or if you're dealing with really visible mold, bleach can be your heavy-hitter. Just be careful!

1. Bleach Cycle:
   • For a top loader: Fill the washer with hot water on the highest setting. Add 1 cup of liquid chlorine bleach. Let it agitate for a minute, then pause and let it soak for at least 30 minutes. Let the cycle complete.
   • For a front loader: Add 1/2 to 1 cup of liquid chlorine bleach to the bleach dispenser. Run an empty cycle on the hottest water setting possible (again, that "Tub Clean" cycle is ideal).
2. Important Warning: NEVER mix bleach and vinegar! The combination creates toxic chlorine gas, which is super dangerous. Make sure you run a full, clear water rinse cycle between using vinegar and using bleach, if you decide to try both.

Don't Forget the Nooks and Crannies: Gaskets, Dispensers, and Filters

Cleaning the main tub is a big step, but you can't ignore the hidden spots where mildew loves to lurk.

• Door Gasket/Boot (Front Loaders): Seriously, this is usually the main culprit. Pull back the rubber seal around the door and prepare yourself – it might be pretty gnarly. Use a cloth dampened with a vinegar water solution (or a diluted bleach solution if you used bleach for the main clean) and wipe every single crease and fold. You'll be amazed at the gunk you find. "Many folks forget that the gasket isn't just a seal; it's a mold magnet if not regularly wiped down," advises Sarah Jenkins, a senior appliance technician with Bay Area Repairs. "It's the first place I check on a service call for odors."
• Detergent Dispensers: If your dispenser drawer pulls out, take it out and scrub it under warm running water with a brush. There's often a surprising amount of sticky, gunky residue in there that encourages mold growth.
• Drain Pump Filter (Front Loaders, sometimes Top Loaders): This one surprised me. Many front loaders have a small access panel at the bottom front. Behind it is a filter designed to catch lint, coins, and other debris before it clogs your pump. Follow your manual's instructions to open it up – have a shallow pan or towel ready, because some water will probably come out! Clean out any gunk you find. This can actually contribute to smells if it's full of stagnant, slimy crud. Which makes total sense, really.

Why Does My Washing Machine Smell Like Mildew in the First Place? (And How to Stop It)

Knowing why this happens can help you prevent it from coming back. Because nobody wants to do this deep clean every other week.

Common Culprits Behind the Washer Odor

It's usually a combination of things.

• Leaving Wet Clothes Inside: This is probably the biggest offender. You finish a load, get distracted, and those wet clothes sit in a warm, dark, sealed drum. It's a perfect petri dish for mildew.
• Too Much Detergent: I know, I know, you want your clothes clean! But using too much detergent, especially in HE machines, creates excess suds that don't rinse away completely. This residue becomes food for mold and mildew. "We see probably 60% of our washer odor calls stemming from people just using too much detergent," states Mark Vella, owner of Vella Appliance Services. "It creates a residue that's perfect for mildew to thrive."
• Using Cold Water Exclusively: Cold water doesn't break down detergent and soil as effectively as hot water, leading to more residue buildup over time.
• High Efficiency Washer Design: HE washers use less water, which is great for saving energy, but it also means there's less water to rinse away detergent and grime. Plus, front loaders have that rubber gasket seal that can trap moisture and gunk.

Simple Habits to Keep the Mildew Monster Away

Prevention is a whole lot easier than cleaning a full blown mildew problem.

• Leave the Door Ajar: After every load, leave the washing machine door slightly open. This allows air to circulate and the interior to dry out, making it much less hospitable for mildew. And that's kind of a big deal.
• Wipe Down the Gasket: Take a quick minute after your last load of the day to wipe down the door gasket and the inside of the door with a dry cloth.
• Use HE Detergent (If You Have an HE Washer): These detergents are specially formulated to produce fewer suds with less water. They're not just a marketing gimmick.
• Don't Overload: Give your clothes and the water enough space to circulate properly. Overloading means clothes don't get clean, and detergent might not rinse away.
• Run a Hot Cycle Regularly: Every few weeks, throw in a load of whites (like towels or sheets) on a hot water cycle with a bit of bleach or just run an empty "Tub Clean" cycle with vinegar. The hot water helps kill off lingering bacteria and mildew spores.

When to Call in the Pros (Because Sometimes You Just Can't Win)

Most of the time, a good deep clean will solve your mildew problem. But if you've tried everything above, and your washing machine still smells like mildew how to clean it then becomes a question for the experts. Or if you're noticing actual drainage issues, water leaking, or strange noises along with the smell, then it might be time to call in a professional appliance repair technician. They can check for more serious blockages or mechanical issues that are contributing to the funk. But for typical mildew, you've got this!