Why Do My Towels Still Smell After Washing? What to Check Before Washing Them Again

Have you ever picked up a freshly washed towel, used it after a shower, and suddenly noticed a musty smell?

Woman folding freshly dried laundry in an apartment in Japan

That happened to me recently with the towels we dry indoors at home in Japan.

The towels had been washed, dried, and folded as usual, so I was confused when one of them started smelling again as soon as it became slightly damp.

My first thought was simple: Should I just wash it again?

After looking into it, I realized that repeatedly putting the same towel through a normal wash may not solve the problem.

If your towels still smell after washing, start by checking four things:

1. Check the towel’s care label.
2. If the fabric allows it, consider an appropriate laundry treatment such as oxygen bleach.
3. Check whether you are using too much detergent or fabric softener.
4. If several items smell, not just one towel, check the washing machine too.

Once the smell has been dealt with, drying laundry without leaving it damp for too long can also help keep the problem from coming back.

What to Do When a Towel Still Smells After Washing

If the same towel smells again and again, adding more detergent is not necessarily the answer.

Depending on the fabric and its care instructions, a laundry product such as oxygen bleach may be an option for treating lingering odors.

The important point is that not every towel can be treated in the same way.

Check the care label first, then follow the instructions on the laundry product you plan to use. Some fabrics can be damaged by certain bleaches or soaking methods, and the recommended amount and soaking time can vary by product.

I also saw vinegar suggested online while I was searching for ways to remove towel odor.

I decided not to use it.

I would rather use laundry products according to their instructions than start mixing different things into the washing machine.

One safety rule is especially important: never mix chlorine bleach with acidic products.

Why Can a Clean Towel Still Have a Musty Smell?

It seems strange that something can smell even after it has been washed.

Research from Kao has looked at persistent towel odors and their relationship with biofilms inside textile fibers.

In simple terms, a biofilm is a cluster of microorganisms held together by substances they produce, and it can build up within towel fibers over repeated use.

That does not mean one particular product will automatically fix every smelly towel.

It simply helps explain why an ordinary wash may not always be enough when the same towel has developed a stubborn odor over time.

This also matched something I had noticed at home.

Sometimes a towel seemed perfectly fine while it was dry. Then I used it after washing my face or taking a shower, and the unpleasant smell became noticeable again.

So I started thinking about this as two separate problems.

First, deal with the odor that is already there.

Then, once the towel is clean again, look at how it is being washed and dried so the problem is less likely to return.

Too Much Fabric Softener Can Be Part of the Problem

This was the part that made me look at my own laundry habits. 😅

I like the scent of fabric softener, and sometimes I have been a little generous with it.

I assumed that a little extra would simply make the towels smell nicer.

More is not necessarily better.

Panasonic advises checking the amount of detergent and fabric softener when freshly washed laundry develops an unpleasant smell. Using too much product can leave more residue on fabrics, so following the recommended amount is the better approach.

That made me realize I had been pouring fabric softener by feel rather than measuring it carefully.

So this is one small thing I am changing at home: I am going to use the amount written on the bottle instead of adding a little extra just because I like the scent.

It is also worth checking whether the washing machine is overloaded. Laundry needs enough room to move, wash, and rinse properly.

Guide to checking whether laundry odor comes from one towel or several items

If All Your Laundry Smells, Check the Washing Machine

There is a useful difference between one old towel that keeps smelling and suddenly noticing the same odor on towels, shirts, and other laundry.

If several freshly washed items have started to smell, the washing machine itself is worth checking.

Dirt, detergent residue, and mold can build up in areas of a washer that are difficult to see.

If your washing machine has Japanese controls, look for 槽洗浄 (sō-senjō) on the panel or in the manual. This usually refers to the tub-cleaning cycle.

The exact cleaning method and products depend on the washing machine, so I prefer checking the manual for my own model rather than pouring vinegar, baking soda, or another home remedy into it.

This is one of those small things that can be confusing when living in Japan: sometimes the useful function is already on the machine, but you need to know what the Japanese label means first.

Simple guide to finding and using the tub-cleaning function on a washing machine in Japan

After Removing the Smell, Help Towels Dry Faster

Once the existing odor has been dealt with, the next step is preventing the same problem from coming back.

We normally dry our laundry indoors, so airflow matters in our house.

I now use a fan to move air around the laundry and often set the timer for about three hours. That is simply what fits my routine, not a rule for how long laundry needs to dry.

The important point is not the number of hours.

It is avoiding a situation where freshly washed towels stay damp for longer than necessary.

I try to take laundry out soon after the wash finishes, leave some space between items, and keep air moving around thicker towels.

I have written separately about how I handle indoor laundry during Japan’s humid summer, so I keep the detailed drying routine there rather than repeating it here.

What I’m Changing After My Towels Started Smelling

At first, I thought the problem was simply that we dry our laundry indoors.

That turned out to be only part of the picture.

The biggest surprise for me was the fabric softener. I had been using a little extra simply because I liked the fragrance, without really thinking about whether more was helpful.

From now on, I am going to measure it properly, keep an eye on the washing machine itself, and continue using airflow when I dry towels indoors.

If a clean towel starts smelling again, I am not going to immediately reach for another internet laundry hack.

I would rather check what is actually causing the problem first.

Sometimes the most useful solution is not adding something new to the wash.

It is going back to the basics and checking one thing at a time.

You Might Also Like

👉Should You Leave Your Washing Machine Lid Open? What I Do in Japan

👉Laundry in a Japanese Summer Is More Complicated Than I Expected

References

Kao Corporation — Research on persistent towel odor and biofilms in textile fibers

Panasonic Japan — Guidance on washing machine cleaning, detergent use, fabric softener use, and tub maintenance

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