You are currently viewing Why Does Washing Machine Smell Like Mildew?
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If you’ve noticed an unpleasant mildew smell from your washing machine, you’re not alone. This common issue can be caused by several factors, each of which contributes to the development of mold and mildew. Here’s a look at the primary reasons and how to address them:

1. Dirty Washer Tub

Top view of the washing machine drum
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Over time, soap scum, detergent residue, and mineral deposits can accumulate in the washer tub, creating a breeding ground for mildew. This build-up can lead to a musty smell. To remedy this, regularly clean the tub by running a hot water cycle with a washing machine cleaner or a mixture of baking soda and vinegar.

2. Using the Wrong Type of Detergent

Liquid laundry detergent being poured into
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Using detergent not designed for high-efficiency (HE) washers can lead to excessive suds, which trap moisture and promote mildew growth. Always use HE detergent if you have a high-efficiency washer, as it produces fewer suds and is better suited for these machines.

3. Wet Clothes Left Inside the Washer

Garments swirling in a washing machine drum filled with water and detergent
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Leaving wet clothes in the washer for extended periods allows moisture to linger, fostering an environment where mildew can thrive. Always remove clothes promptly after a wash cycle and keep the washer door open to promote air circulation and prevent dampness.

4. Dirty Dispenser Drawer

Open detergent dispenser drawer
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The dispenser drawer, which holds detergent and fabric softener, can accumulate grime and mold over time. Remove and clean the drawer regularly, ensuring all residues are washed away, and the drawer is thoroughly dried before reinserting it into the washer.

5. Using Too Much Detergent

Laundry detergent being poured onto clothes through a dispenser in a washing machine
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Excess detergent can lead to buildup inside the washer, trapping moisture and creating a mildew-friendly environment. To avoid this problem, follow the manufacturer’s recommendations for detergent usage. Using the correct amount will help reduce residue and prevent mildew growth.

Why Do My Clothes Smell Like Mildew After Drying?

If your clothes still smell like mildew after drying, it’s likely due to one or more of the following issues:

1. Washer Not Thoroughly Cleaning Clothes

If the washer is not adequately cleaning clothes, residual mildew can remain. Ensure your washing machine is functioning correctly and not overloaded, which can affect cleaning efficiency.

2. Dryer Issues

A malfunctioning dryer or one that doesn’t dry clothes thoroughly can also contribute to mildew smells. Check your dryer for proper operation and ensure it’s drying clothes completely. Clean the lint trap and check for any obstructions in the vent system.

3. Moisture in the Laundry Area

High humidity or poor ventilation in your laundry area can contribute to mildew growth on clothes. Ensure your laundry room is well-ventilated and consider using a dehumidifier if necessary.

4. Laundry Piles

Leaving damp laundry in a pile before drying can cause mildew to develop. Ensure that laundry is dried promptly and that piles of wet clothes are not left unattended for long periods.

By addressing these issues, you can keep your washing machine and clothes smelling fresh and mildew-free. Regular maintenance and proper laundry practices go a long way in preventing these unpleasant odors.

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