The surprising truth about how long you can really leave wet clothes in the washer—find out now!
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Veronica E.
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We've all been there: you’ve managed to toss a load of laundry in the washer, only to get distracted by the next thing on your to-do list.
Hours later, you open the washer to find damp clothes, still waiting to be dealt with.
Suddenly, you’re left wondering: is it too late to save those clothes, or do I need to start over with a fresh wash?
While the answer may seem simple at first, there’s actually more to it than you might think—and it depends on a few key factors.

How Long Can Wet Laundry Sit Before It Becomes a Problem?
The clock starts ticking as soon as your laundry finishes its cycle, but how much time do you actually have before bacteria and mold begin to grow?
Experts suggest that you have about 12 hours to salvage your laundry before it starts to smell musty and possibly become a breeding ground for bacteria.
However, some experts believe that, in the right conditions, you might get as long as 24 hours before the clothes become unsalvageable.
"While your washing machine isn’t quite the same as a laboratory, it does create a warm, damp environment perfect for mold and bacteria to thrive," says Dr. Jill Roberts, an expert in environmental health.
After 24 hours, you could see significant mold growth, and the smell of your laundry might be a sign it’s time to rewash.
Why Does Mold and Bacteria Grow in Wet Laundry?
The thought of mold or bacteria growing on your clothes may seem unsettling, but in most cases, it isn’t dangerous.
Dr. Roberts reassures us that while the growth of mold and bacteria might cause some concern, it’s not likely to lead to an infection—after all, we don’t eat our clothes!
However, if you have allergies, you might find that the mold and bacteria could irritate your sinuses or respiratory system.
It’s always a good idea to be cautious if you’re particularly sensitive to these allergens.
What Happens if You Leave Your Laundry Too Long?
If you’ve left your laundry in the washer for too long, you’re probably familiar with the musty smell that greets you when you finally open the door.
According to laundry expert Melissa Dilkes Pateras, it's best to avoid letting laundry sit for more than 12 hours.
If you’re past that time and you notice that unpleasant smell, it’s a good indicator that your clothes need a rewash.

However, don’t worry too much if you've gone a little beyond that window.
If your clothes weren’t particularly dirty, or if you used an extra rinse cycle, you might have a little extra leeway.
Your detergent choices, as well as any bleach you may have used, also play a role in how long your clothes can sit in the washer.
What to Do if You've Gone Past the Limit?
If you realize you’ve left your laundry too long, don't panic. The first thing to do is simply run them through another wash cycle with the same amount of detergent. If the musty smell lingers, there are a few tips to help:
When a Second Wash Isn’t Enough
If your laundry still smells musty after a second wash, Logan Taylor, president of Dazzle Cleaning Company, suggests soaking your clothes in cool water with 2 cups of distilled white vinegar for a few hours before running another cycle.
Vinegar acts as a natural fabric softener and odor neutralizer, helping to get rid of any lingering scents.
Give Your Washing Machine Some TLC
If you suspect the musty smell is coming from your washing machine itself, it might be time to clean it.
Washing machine tablets are effective, especially when used on the "clean" setting with high heat.
Alternatively, you can use a natural cleaning method with dish soap and white distilled vinegar — just run a wash cycle without any laundry in it.
How to Prevent Forgetting Your Laundry in the Future
To avoid dealing with forgotten laundry, try setting a reminder on your phone or using the end-of-cycle alert on your washer.
If you have a smart washer, make sure push alerts are enabled on your devices.
Staying close to the machine or using the delay function can also help you stay on top of laundry day.
In the end, it’s easy to forget laundry, but a few smart habits can make a big difference in saving you time, energy, and detergent.
By staying on top of it, you can keep your clothes fresh and ready to wear without the hassle.
Have you ever left clothes in the washer too long? What’s your go-to method for rescuing them, or do you have any other laundry tips to share? Share them in the comments below!
Hours later, you open the washer to find damp clothes, still waiting to be dealt with.
Suddenly, you’re left wondering: is it too late to save those clothes, or do I need to start over with a fresh wash?
While the answer may seem simple at first, there’s actually more to it than you might think—and it depends on a few key factors.

Don't let forgotten laundry linger—learn the best way to keep your clothes fresh and ready to wear! Image Source: Pexels / Ketut Subiyanto.
How Long Can Wet Laundry Sit Before It Becomes a Problem?
The clock starts ticking as soon as your laundry finishes its cycle, but how much time do you actually have before bacteria and mold begin to grow?
Experts suggest that you have about 12 hours to salvage your laundry before it starts to smell musty and possibly become a breeding ground for bacteria.
However, some experts believe that, in the right conditions, you might get as long as 24 hours before the clothes become unsalvageable.
"While your washing machine isn’t quite the same as a laboratory, it does create a warm, damp environment perfect for mold and bacteria to thrive," says Dr. Jill Roberts, an expert in environmental health.
After 24 hours, you could see significant mold growth, and the smell of your laundry might be a sign it’s time to rewash.
Why Does Mold and Bacteria Grow in Wet Laundry?
The thought of mold or bacteria growing on your clothes may seem unsettling, but in most cases, it isn’t dangerous.
Dr. Roberts reassures us that while the growth of mold and bacteria might cause some concern, it’s not likely to lead to an infection—after all, we don’t eat our clothes!
However, if you have allergies, you might find that the mold and bacteria could irritate your sinuses or respiratory system.
It’s always a good idea to be cautious if you’re particularly sensitive to these allergens.
What Happens if You Leave Your Laundry Too Long?
If you’ve left your laundry in the washer for too long, you’re probably familiar with the musty smell that greets you when you finally open the door.
According to laundry expert Melissa Dilkes Pateras, it's best to avoid letting laundry sit for more than 12 hours.
If you’re past that time and you notice that unpleasant smell, it’s a good indicator that your clothes need a rewash.

Forgotten laundry? Here's how to deal with the lingering odor after clothes sit too long in the washer. Image Source: YouTube / Organizing TV.
However, don’t worry too much if you've gone a little beyond that window.
If your clothes weren’t particularly dirty, or if you used an extra rinse cycle, you might have a little extra leeway.
Your detergent choices, as well as any bleach you may have used, also play a role in how long your clothes can sit in the washer.
What to Do if You've Gone Past the Limit?
If you realize you’ve left your laundry too long, don't panic. The first thing to do is simply run them through another wash cycle with the same amount of detergent. If the musty smell lingers, there are a few tips to help:
- Use the presoak option on your machine if available.
- Consider adding laundry boosters like baking soda, borax, or laundry soda. A half-cup of baking soda directly in the drum can help freshen up the load.
- If you prefer a natural alternative, adding distilled white vinegar in the fabric-softener dispenser can work wonders. Just be sure not to mix it with bleach, as that can create harmful fumes.
When a Second Wash Isn’t Enough
If your laundry still smells musty after a second wash, Logan Taylor, president of Dazzle Cleaning Company, suggests soaking your clothes in cool water with 2 cups of distilled white vinegar for a few hours before running another cycle.
Vinegar acts as a natural fabric softener and odor neutralizer, helping to get rid of any lingering scents.
Give Your Washing Machine Some TLC
If you suspect the musty smell is coming from your washing machine itself, it might be time to clean it.
Washing machine tablets are effective, especially when used on the "clean" setting with high heat.
Alternatively, you can use a natural cleaning method with dish soap and white distilled vinegar — just run a wash cycle without any laundry in it.
How to Prevent Forgetting Your Laundry in the Future
To avoid dealing with forgotten laundry, try setting a reminder on your phone or using the end-of-cycle alert on your washer.
If you have a smart washer, make sure push alerts are enabled on your devices.
Staying close to the machine or using the delay function can also help you stay on top of laundry day.
In the end, it’s easy to forget laundry, but a few smart habits can make a big difference in saving you time, energy, and detergent.
By staying on top of it, you can keep your clothes fresh and ready to wear without the hassle.
Key Takeaways
- Wet clothes should ideally be removed from the washing machine within 12 hours to prevent musty smells or bacterial and mould growth.
- If clothes have been left in the washer too long, rewashing them with the same amount of detergent or adding a laundry booster or fabric rinse aid can help eliminate odours.
- Regularly cleaning your washing machine is recommended to prevent odours, especially if clothes are frequently left sitting wet for extended periods.
- To avoid forgetting wet laundry, it's suggested to set reminders, use the end-of-cycle alerts on your washing machine, or stay close by during the wash cycle.
Have you ever left clothes in the washer too long? What’s your go-to method for rescuing them, or do you have any other laundry tips to share? Share them in the comments below!