Those Who Wash Daily vs. Once a Week: Is "It's Not Dirty Because I Washed My Body" Really True? Let's Reconsider When to Change Towels

Using a bath towel after a shower, then hanging it to dry for use the next day, or putting it in the laundry basket after a single use.

Both are common habits, but when you talk to family or friends, you'll find surprisingly different perspectives. "Do you really need to wash it every time when it's just wiping a clean body?" "I'm concerned about using something that's already wet again." Because towels are everyday items, each household's "normal" is easily reflected.

An article published by the German magazine stern on October 15, 2026, also addressed the frequency of washing towels. The article warns that once a week may not be enough, but what's truly useful is not judging by the number of days alone.

The number of uses, the area wiped, and the time it takes to dry. By considering these three factors, you can easily determine a replacement guideline that suits your home.

"Towels don't get dirty because they wipe a washed body" is not something you can definitively say.

Towels used to dry off after a bath may not appear as dirty as cloths with mud or food spills. However, the absence of visible dirt does not mean nothing is attached.

The stern article explains that not only moisture but also skin flakes, sebum, and naturally occurring skin microorganisms transfer to the towel fibers.

The significant difference comes from how the towel dries after use.

If you leave the towel rolled up or hang it layered, moisture tends to remain inside. If it doesn't dry before the next bath, it creates an environment conducive to microbial growth.

In other words, even if both are "towels used for three days," the conditions differ between one that dries thoroughly each time and one that remains damp. Simply setting a laundry day doesn't manage how it's handled in between.

"Once a week is not absolutely wrong"—Guidelines vary even among expert organizations

stern suggests that if a bath towel is spread out and completely dried after use, it can be used about 3-4 times before washing.

Utah State University also shares advice from the American Cleaning Institute, suggesting that bath towels be washed after 3-4 uses, and hand towels every two days.

Meanwhile, the Cleveland Clinic advises washing bath towels at least once a week, increasing to 2-3 times if indoor humidity is high.

What this difference shows is that there is no universal boundary of "danger" that applies to every household after a certain number of days.

Using the same towel every day would mean seven uses in a week. In households that rotate several towels, the number of uses per towel decreases. The phrase "once a week" alone doesn't reveal these differences.

stern also mentions a survey indicating that over half of Germans wash their towels once a week. However, as the text does not clarify the survey's sponsor, sample size, or methodology, caution is advised in generalizing these numbers.

Consider bath towels, face towels, foot towels, and hand towels separately

When considering the frequency of towel replacement, it's not necessary to treat all towels the same.

When organizing guidelines by use, it looks like this:

These are lifestyle guidelines and not guarantees of safety up to that number of uses.

Especially for hand towels in the bathroom, the situation differs from a bath towel used once by one person after a bath. If the family uses it from morning to night, it gets repeatedly wet without drying. Even if you're careful with your personal bath towel, you might forget to replace shared hand towels, so it's worth reviewing.

On social media, there's the "replace every time" group and the "once a week" group, and the living situations in between

On the international forum Reddit, the topic of how many times to use a towel before washing it repeatedly comes up.

In the "CleaningTips" thread, some posts mention using a new towel for every shower, while others mention replacing towels once a week in conjunction with cleaning the bathroom. Some people explain the difficulty of frequent washing due to a lack of laundry facilities at home.

Another useful example is households that separate washing and replacement days. One poster explains washing towels collectively on Fridays and switching to a clean towel on Mondays.

The discussions introduced here are not direct responses to the stern article but are separate public discussions about towel washing frequency. The posts are based on personal experiences and not grounds for determining a hygienic consensus.

Nonetheless, important points emerge from these discussions. The frequency of washing is related not only to a sense of cleanliness but also to the availability of a washing machine, drying space, spare towels, and time available for chores.

Instead of labeling someone as "unclean" or "over-washing," it's more helpful to consider a system that allows towels to be kept clean in that household.

In Japanese households, it's important to check if the towel is dry before the next use

If you want to adopt overseas guidelines in a Japanese household, you need to consider your home's drying conditions as well.

During the rainy season or consecutive rainy days, in bathrooms with insufficient ventilation, or in crowded indoor spaces, towels take longer to dry. While large, thick towels are comfortable, they tend to retain moisture depending on where they're hung.

First, check the condition before you use it next. Even if the edges are dry, the folded parts might still be damp.

After use, spread the towel as much as possible and hang it to allow air circulation. Do not stack multiple towels. During times when drying is difficult, replace them sooner. Combine these practices with the frequency of washing.

Drying does not substitute for washing, but it is important for handling towels between washes.

"It smells even after washing" is a sign to review more than just frequency

In Japan, it's common to struggle with towels that smell again when wet, even after washing.

In a 2024 research presentation, Kao reported on the relationship between unpleasant odors remaining in repeatedly used towels and the biofilm structure created by microorganisms.

However, this research was conducted under specific conditions and does not indicate that all household towels are uniformly dangerous. Additionally, odor alone cannot determine infection risk.

In daily life, if the smell remains after washing, it can be an opportunity to review washing and drying methods.

Use the detergent in the indicated amount. Do not overfill the washing machine. Hang the laundry immediately after washing. When using bleach, check the washing instructions for the towel and the product description.

Kao's lifestyle information also advises on spacing laundry and ensuring ventilation when drying is difficult, and using bleach suitable for clothing if odors persist after drying.

Create a system that makes it easy to replace towels without increasing chores too much

"I want to replace towels more frequently, but it's hard to run the washing machine every time." If you feel this way, consider separating replacement and washing.

Having clean spares means you don't have to keep using the same towel until the laundry day. You might consider preparing small towels for face use, color-coding for each family member, or placing spare hand towels near the bathroom.

For used towels that can't be washed immediately, prepare a place to dry them instead of letting them pile up wet. It's also important to keep them separate from clean spares.

If the habit of replacing towels every time is already continuing without difficulty, there's no need to reduce the frequency. On the other hand, even in households that wash once a week, operations can change just by switching to spares in between.

In times of illness or when there are skin wounds or issues, don't rely solely on the usual replacement guidelines, avoid sharing, and follow medical advice as needed.

The first step you can take today is to spread out the towel to dry. Then, before using it next, check its dryness and smell. The timing for replacement, which isn't visible on a calendar, is there.

Sources and References

1. stern: Introduces towel washing frequency according to use, such as for bathing, face, and feet. Published on October 15, 2026.
   https://www.stern.de/familie/handtuecher--waschen-auch-sie-diese-deutlich-zu-selten---37523500.html

2. Cleveland Clinic: Explains management according to environment and skin condition, such as washing bath towels at least once a week and 2-3 times in high humidity.health.clevelandclinic.org
   https://health.clevelandclinic.org/how-often-should-you-wash-your-germ-magnet-of-a-bath-towel

3. Utah State University: Introduces guidelines from the American Cleaning Institute, suggesting bath towels be washed after 3-4 uses and hand towels every two days.USU
   https://extension.usu.edu/news_sections/home_family_and_food/the-dirt-on-laundry-how-often-to-wash

4. Reddit/CleaningTips: Experiences shared on social media, such as replacing after each use, once a week, or switching to spares and washing collectively. Not direct responses to the original article.reddit.com
   https://www.reddit.com/r/CleaningTips/comments/17xmab3/how_many_times_do_you_use_a_bath_towel_before/

5. Kao: Research presentation on the relationship between odors remaining in towels after washing and biofilm. Published on March 13, 2024.Persistent unpleasant odors in towels even after washing are localized with biofilm
   https://www.kao.com/jp/newsroom/news/release/2024/20240313-001/

6. Kao: Lifestyle information on odor prevention when laundry is slow to dry and using bleach suitable for clothing.〖Usage Method〗How to prevent odor when laundry is slow to dry?
   https://www.kao.com/jp/qa/detail/15871/