How to Get Mildew Smell Out of Bathroom Towels

Wash the towels twice in hot water with no detergent: first with one cup of white vinegar, then with half a cup of baking soda, and dry them fully at once. This My Homesblogs guide shows how to get mildew smell out of bathroom towels and stop it from returning.

Key Takeaways

• Mildew smell comes from microbes feeding on trapped moisture, body oils, and detergent residue, not from dirt alone.
• A normal wash with detergent cannot strip that residue, so the smell survives cycle after cycle.
• Two back-to-back hot washes — vinegar first, baking soda second, no detergent — reset the fibers.
• Towels must leave the washer at once and dry fully; damp storage restarts the problem.
• A smell returning after two strip washes points to the washer or a towel past saving.

What Is the Mildew Smell in Bathroom Towels?

The mildew smell in towels is the odor of bacteria and fungi feeding on moisture, skin oils, and soap residue trapped in damp fibers.

Why Do Bathroom Towels Smell Musty Even After Washing?

A freshly washed towel that still smells musty was never truly clean; the wash removed surface dirt and left the residue feeding microbes behind. Three habits create it: excess detergent, softener coating the fibers, and towels left wet in the washer or bunched on a hook.

Apartment Therapy’s towel guide notes that mildew growth can begin within 24 to 48 hours of damp storage. That window explains why a towel left bunched in a hamper over a weekend already needs the full rescue wash instead of a normal cycle. musty bathroom towels trace back to this cycle: damp fibers plus trapped residue, repeated until ordinary washes fail.

How to Get Mildew Smell Out of Bathroom Towels With Vinegar and Baking Soda?

Run two hot washes back to back with no detergent, then dry the towels fully at once.

1. Shake the towels out and load loosely, filling no more than half the drum.
2. Pour one cup of white distilled vinegar into the drum, not the dispenser, with no detergent or softener.
3. Run the hottest cycle the care label allows, checking blends and microfiber first.
4. Leave the towels in the drum and sprinkle half a cup of baking soda evenly over them.
5. Run a second hot cycle, again with no detergent or softener.
6. Move the towels to the dryer at once and tumble until fully dry, plus ten extra minutes.
7. Sniff-test while warm: clean cotton smells like nothing. If a sour note remains, repeat the pair once.

The order matters. Vinegar acid cuts detergent residue and mineral buildup, while baking soda neutralizes lingering odor in the second pass. Mixed in one wash, the two cancel each other out before either cleans, which is why the vinegar wash for towels always runs as its own cycle. Line-drying works only in direct sun and airflow; a towel draped over a closed shower door dries slowly and invites the smell back.

What If the Smell Survives the Two-Wash Method?

Step up to an oxygen bleach soak, then check the washer before blaming the towel. Dissolve oxygen bleach (sodium percarbonate) in warm water per the label, soak for the label time, then wash normally with no softener. Oxygen bleach suits colored towels; whites can take diluted chlorine bleach instead.

The Towel Depot’s towel-bleaching guide notes that oxygen bleach releases hydrogen peroxide once water passes 120 degrees Fahrenheit. That threshold is why a warm soak beats a cold one for stained, smelly towels. For whites only, 3% hydrogen peroxide in the bleach dispenser adds a brightening pass; keep it off colors.

If the rescue turns into a laundry-room refresh and you build a wooden drying rack, run the board dimensions through a BD FT Calculator before buying lumber so you pay for only the wood you need. A strip wash for towels that still smell after the oxygen soak usually means the washer is the source, not the towel.

Rescue figures at a glance:

When Is the Washer the Problem, Not the Towel?

When clean towels pick up a smell inside the machine, the washer is recontaminating every load. Front-loaders suffer most, since water lingers in the door seal folds after every cycle.

A 2025 Frontiers in Microbiology study that swabbed ten household washers found the heaviest bacterial counts on front-loader door seals. That finding points to the first check: pull back the gasket folds, wipe them with warm soapy water, and dry them. Next, pull out the detergent drawer, scrub away the sticky residue inside, then clear the drain pump filter behind the lower front panel.

Run a monthly cleaning cycle on the hottest, longest setting, wipe the drum dry after the last load, and leave the door ajar between washes so the interior dries out. Cut detergent to the label amount; excess leaves the film that traps moisture and feeds the next round of smell. towels smell after washing most often when one of these four spots — gasket, drawer, filter, drum — goes uncleaned for months.

How Do You Keep Bathroom Towels From Smelling Again?

Dry towels fast, wash without softener, and never let a load sit wet. Spread each towel flat across a bar after every shower instead of bunching it on a hook; flat fabric dries in hours, bunched fabric stays damp. Wash bath towels after three to four uses, sooner in a humid bathroom, and skip softener permanently — it coats fibers, cuts absorbency, and locks odor in.

Onsen Towel’s towel-care guide puts sanitize-cycle water at 150 degrees Fahrenheit or higher. That heat is why the sanitize cycle earns a monthly place where smells recur: one sanitize wash per month, with the gasket wipe, keeps the machine from reseeding clean towels. For more bathroom cleaning routines, browse homesblogs before your next wash day. keep towels fresh with this rhythm — dry flat, wash on schedule, clean the machine monthly — and the rescue wash becomes rare instead of weekly.

When Should You Replace a Towel Instead of Washing It Again?

Some towels are past rescue. Replace one when the fabric has gone thin, loops are torn, or black spots survive two full strip washes and an oxygen soak. Replace it too when the smell returns within a single use after two strip washes and a cleaned washer — that pattern means the fibers hold the odor at their core. A fresh towel plus the prevention routine costs less than repeating rescue washes on ruined fabric.

Frequently Asked Questions

Can you get mildew smell out of towels with vinegar alone?

Yes, for light smells, though the two-wash sequence clears deeper residue. A single vinegar wash strips surface residue, but months of buildup need the baking soda second pass to neutralize what the vinegar loosened.

Does baking soda alone remove mildew smell from towels?

Baking soda alone softens the smell without removing the residue feeding it. It neutralizes odor well, which is why it works as the second wash, but it cannot cut buildup on its own.

Can you mix vinegar and baking soda in one wash?

No — mixed together they neutralize each other before either cleans. Vinegar is an acid and baking soda is an alkali, so combining them spends both on each other instead of on the towel. Run two separate cycles.

Is chlorine bleach safe for smelly towels?

Only on white towels, diluted, and never mixed with vinegar or ammonia. Chlorine bleach kills microbes fast but weakens cotton over time and yellows fabric when overused, so myhomesblogs recommends oxygen bleach first for colors and chlorine only as a whites-only backup.

Why do my towels smell worse after washing?

Because the washer is adding microbes faster than the wash removes them. A dirty gasket, drawer, or filter recontaminates every load, so towels leave smelling worse than they entered. Clean the machine first, then rewash.

How often should you wash bathroom towels?

Wash bath towels after three to four uses, sooner in a humid bathroom. Between washes, spread each towel flat so it dries fully; a towel that never dries starts smelling before wash day.

Conclusion

The routine that works for how to get mildew smell out of bathroom towels is simple: strip the residue with the two-wash sequence, dry fully at once, and fix the washer when the smell keeps returning. Towels stay fresh when they dry fast and never sit damp.