Towels Still Smell After Washing: Detergent, Drying and Washer Checks

Towels that still smell after washing may involve detergent or softener residue, a tightly packed load, unsuitable cycle settings, incomplete drying, storage moisture or odor already present in the washer. More than one factor can overlap, so this guide checks the routine stage by stage instead of claiming one diagnosis from smell alone.

Why this happens

Towels are thick and absorbent by design, which makes them more prone to trapping both moisture and detergent residue than lighter fabrics. A musty smell in towels specifically — more than in the rest of a laundry load — often points to one of two overlapping issues: residue that didn’t fully rinse out, or moisture that didn’t fully evaporate before the towel was folded and stored. Both are genuinely common and don’t indicate anything wrong with the towels themselves.

It’s worth being clear about what this guide treats as observations rather than confirmed causes. Detergent amount, water temperature, load size, rinse performance, and drying time all affect the outcome, but none of them can be confirmed as the cause just from a smell — the checks below are about narrowing down which is most likely for your situation, not diagnosing with certainty.

It also helps to separate a smell that was already there before washing from one that develops afterward. A towel that smelled musty going into the wash and still smells musty coming out may not have been cleaned thoroughly enough by that cycle — which points toward detergent, water temperature, or rinse performance. A towel that smelled fine coming out of the dryer but musty a day or two later points more toward incomplete drying or storage conditions instead.

Cause-by-stage decision table

Work through this top to bottom as a checklist for your own routine rather than treating any single row as a confirmed cause — more than one of these often contributes at once.

Before you change anything

Least-invasive checks, in order

1. Reduce the load size if towels have been washed packed tightly, and rewash a smaller batch to see if the smell changes.
2. Check your detergent dose against the label and your washer’s guidance for the load size and soil level, and adjust if you’ve been using more than recommended.
3. Skip fabric softener on one wash as a test. Official Whirlpool guidance notes that softener can leave a coating and reduce towel absorbency; whether it is contributing to odor in a particular load still cannot be confirmed from smell alone.
4. Use the warmest water your towels’ care label allows, since warmer water generally dissolves detergent more completely than cold water.
5. Use an extra rinse option if your washer has one and your manual confirms it’s supported for the cycle you’re using.
6. Dry towels promptly after the wash cycle ends rather than leaving them in the washer, and make sure they’re fully dry — not just dry to a quick touch — before folding and storing them.
7. If towels still smell musty after adjusting these one at a time, the washer itself may be the source rather than the towels or the routine — see the washing machine odor guide linked below.

Maintenance and prevention

• Wash towels separately from lightweight items when possible, since towels need more room to agitate and rinse fully.
• Use a detergent amount matched to your washer type and water hardness rather than a fixed habit carried over from a previous machine.
• Dry towels immediately after washing, and avoid letting a finished load sit in the washer for hours before moving it to the dryer or line.
• Fold and store towels only once they’re fully dry throughout, including in thicker seams and folded edges where moisture lingers longest.
• Give towels room to breathe in the linen closet rather than packing the shelf tightly, since airflow helps prevent any residual moisture from turning musty in storage.

Outside what this guide covers

This guide covers detergent use, load size, water temperature, rinse options, and drying habits — the parts of the routine you control directly. It does not cover diagnosing or repairing washer or dryer faults, and it does not recommend boiling, universal hot-water treatments, repeated chemical stripping routines, or masking odor with fragrance rather than addressing the cause. If the checks above don’t resolve the smell, or if you’re seeing signs of an appliance fault rather than a towel-care issue, that’s a different problem than this guide addresses.

FAQ

Is it the towels or the washing machine?

Smelling a towel straight from the dryer is a useful test — if it already smells musty at that point, the washer or wash routine is more likely involved than the towel itself or how it was dried.

Should I use more detergent to get towels really clean?

Not necessarily — using more than the recommended amount is one of the more common causes of the residue that leads to lingering odor, so matching the dose to your load rather than adding extra is usually the better approach.

Does fabric softener always cause odor problems?

Not always, but it’s a common contributing factor for towels specifically, since softener coatings can interfere with how towel fibers absorb and release moisture. Skipping it for a wash or two is a reasonable, low-risk way to test whether it’s a factor for you.

How long can towels sit before they start to smell?

This varies by humidity, fabric, and how tightly they’re packed, so there’s no single time that applies everywhere — as a general habit, moving towels from washer to dryer promptly is more reliable than watching a clock.

Do thicker, more absorbent towels smell musty more easily than thinner ones?

A thicker towel can hold more water and may take longer to dry through its seams and folds. That does not guarantee odor, but it makes a complete-dryness check especially useful before folding or storing it.

Related checks

If the smell seems to be coming from the washer itself rather than just the towels, this washing machine odor guide walks through gasket, dispenser, and tub checks for both front-load and top-load machines. And if you’re noticing residue on dark clothing from the same detergent routine, this detergent residue guide covers a related dosing question.

New to RFSE? See how to approach any RFSE guide safely, or browse the full Laundry & Cleaning hub for more guides like this one.

Sources

This guide is based on official manufacturer documentation current as of publication. Cycle options, temperature settings, and rinse features vary by washer model — always confirm details against your exact machine’s manual and your towels’ care label.

• Whirlpool — “How to get mildew smell out of clothes”
• Whirlpool — “How to Remove Tough, Stinky Odors From Clothes”
• Whirlpool — “What Is Fabric Softener and What Does It Do?”