Why Your Beach Towel Smells Musty and How to Fix It
By Slowtide | Art Inspired Towels, Blankets & Changing Ponchos | Published: 2026-10-22
Category: Tips & Care
Musty beach towel? Learn the common causes, how to remove mildew and odors, and when to stop washing and replace your towel.
Quick Answer
To fix a musty beach towel, wash it with hot water and vinegar or baking soda, then dry it thoroughly in the sun or a hot dryer. If the smell persists after two washes, the towel may need replacing.
Why Beach Towels Get Musty
Beach towels are prone to musty smells because they stay damp for long periods, especially when rolled up in a bag or left in a car. The combination of moisture, warmth, and trapped sand creates an ideal environment for mildew and bacteria to grow.
Salt and sunscreen residues also contribute. They can trap moisture and provide food for odor-causing microbes, making the problem worse if the towel isn't washed properly.
The Limits of Washing
Washing can remove most mildew and odors, but it has limits. If the towel has been damp for days, the mildew may have penetrated deep into the fibers, making it hard to fully eliminate the smell. In such cases, even a thorough wash may not restore the towel's freshness.
Also, over-washing with harsh chemicals can degrade the towel's softness and absorbency over time. So it's worth trying the gentler remedies first before resorting to stronger treatments.
Diagnose and Fix Your Musty Beach Towel
- Symptom: Your beach towel smells musty or sour, even after airing it out.
- Likely Cause: The towel stayed damp too long, or it has residue from salt, sunscreen, or sand that trapped moisture and promoted mildew growth.
- Corrective Action: Wash the towel alone in hot water with one cup of white vinegar (instead of detergent) to kill mildew and neutralize odors. Then wash again with a normal detergent cycle. Dry thoroughly in a hot dryer or in direct sunlight, as UV rays help kill remaining bacteria. After washing, always dry the towel completely before storing it.
- When to Stop or Choose Another Option: If the musty smell remains after two washes, the mildew has likely set in permanently. Stop washing and replace the towel—continued use can irritate skin and spread spores. For a fresh start, consider a new beach towel made from quick-dry materials that resist odor buildup.
Product Spotlight
- Sun Dazed Beach Towel - Toast: Soft cotton construction provides dependable absorbency and a relaxed surface for lounging between dips in the water. A well-made cotton towel like this one is easier to care for and more absorbent, which helps it dry faster and resist musty odors when properly maintained.
Sun Dazed Beach Towel - Toast
