If your thrifted clothes smell musty or like mildew, you can remove that odor safely and effectively at home. Mildew smells come from fungus growing in damp conditions, but with the right cleaning steps and household products, you can refresh your secondhand clothes without harming the fabric. This guide explains why mildew odors happen, how to treat them step-by-step, how to dry clothes properly, common mistakes to avoid, and how to keep your clothes smelling fresh after cleaning.
Why do thrifted clothes smell like mildew?
Thrifted clothes often smell like mildew because they’ve been stored in damp or poorly ventilated places before purchase. Mildew is a fungus that grows in moist environments. Clothes left damp for long periods—such as packed tightly in plastic bags, stored in basements, or stacked without airflow—can develop mildew and that musty odor. Fabrics like cotton and wool absorb moisture easily and are especially prone to mildew if not fully dry before storage. Even clean-looking clothes can harbor mildew if moisture and poor air circulation were present.
What household products can safely remove mildew smell from clothes?
Household products that remove mildew smell without damaging clothes include white vinegar, baking soda, and oxygen-based bleach safe for colors. White vinegar neutralizes odors and kills mildew spores gently on most fabrics. Baking soda absorbs odors and can help lift mildew residues. Oxygen-based bleach breaks down mildew and odors without the harshness of chlorine bleach, which can damage or discolor colored or delicate fabrics. These ingredients work by neutralizing odor molecules or removing mildew during washing.
How to wash thrifted clothes to remove mildew smell step by step
- Check clothes for visible mold or damage. Brush off dry mold spores outside to avoid spreading them indoors.
- Fill a basin or sink with warm water and add one cup of white vinegar. Soak the clothes fully for at least an hour to kill mildew and neutralize odors.
- Drain the soaking water and rinse clothes thoroughly with clean water.
- Wash the clothes in the machine using the warmest water safe for the fabric (check care labels). Use a good detergent and add half a cup of baking soda to boost odor removal.
- If fabric allows, add color-safe oxygen bleach following product instructions for extra mildew-fighting power.
- Run the full wash cycle. If the smell remains, repeat the soak and wash before drying.
How to dry clothes properly to avoid mildew smell returning
Drying clothes completely is essential to stop mildew smells from coming back. Air dry clothes in direct sunlight if possible, as sunlight kills mildew spores and dries moisture quickly. If outdoor drying isn’t an option, use a dryer on a heat setting appropriate for the fabric. Never store or fold clothes while damp, as that promotes mildew growth. Separate heavier and lighter items to help them dry evenly. After drying, smell the clothes; if any musty odor remains, dry them longer.
What mistakes to avoid when trying to get rid of mildew smell
- Skipping the vinegar soak: Mildew odors often need soaking to break down spores before washing.
- Using only cold water: Warm or hot water (as fabric care allows) kills mildew more effectively.
- Overloading the washer: Clothes need space to move so detergent and additives work.
- Using chlorine bleach on colored or delicate fabrics: It can cause damage and doesn’t reliably remove odors.
- Partially drying clothes or drying indoors without airflow: Damp clothes in confined spaces redevelop mildew smells.
- Storing clothes while still damp: Even slight moisture can cause mildew to return quickly.
How to store thrifted clothes to keep them fresh after cleaning
Store cleaned thrifted clothes in a dry, well-ventilated place to keep them fresh. Avoid plastic bags or airtight containers for long-term storage, since they trap moisture and encourage mildew. Use breathable garment bags, cotton bins, or open shelving that allows air circulation. Adding moisture absorbers like silica gel packs or charcoal sachets helps reduce humidity. Regularly air out stored clothes, especially in humid climates. Always make sure clothes are completely dry before storing.
Conclusion
After soaking, washing, and drying your thrifted clothes following these steps, they should smell fresh and free of mildew. Keeping them dry and stored where air circulates will maintain that freshness. With proper care, your secondhand clothes can smell clean and be ready to wear with confidence.
Frequently Asked Questions
Can I use bleach to remove mildew smell from thrifted clothes?
Chlorine bleach can damage or discolor many fabrics, especially colors and delicate materials, so it’s best to avoid it. Use white vinegar or oxygen-based bleach that’s safe for colors to remove mildew smells safely.
What if the mildew smell doesn’t go away after washing?
If the smell remains, repeat the vinegar soak and washing steps. Persistent odors may need multiple treatments. Also check that clothes are completely dry during drying and before storage to prevent mildew from returning.
Is it safe to dry clothes with mildew smell indoors?
Drying indoors can work if the room has good airflow, like a fan or dehumidifier, to remove moisture quickly. Without airflow, mildew smells may linger or worsen. Whenever possible, dry clothes outside in sunlight for best results.