I asked laundry experts why there are detergent stains on my clothes — and it’s down to these 3 common mistakes

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Do you have unsightly detergent stains? Here’s why

Woman looking into a loaded washing machine
(Image credit: Shutterstock)

We all want to make light work of our laundry chores by simply throwing as many items as we can into our trusty washing machines.

But if, like me, you’ve spotted detergent stains on your newly-washed items, it can seem rather counter-productive. These unsightly stains often appear as blue or white splotches on fabrics and leaves a waxy or rough texture. What’s more, these ruin the look of your favorite garments, especially if you want to wear it for the day.

I asked the laundry experts why there are detergent stains on my clothes — and it turns out I’d been making these common laundry mistakes.

What causes detergent stains on clothes?

According to laundry experts, there are several causes for detergent stains on clothing.

Using too much detergent

Powder detergent being added to a detergent draw in a washing machine

(Image credit: Shutterstock)

Typically, stains appear when your laundry detergent hasn’t properly dissolved during a wash cycle. This can either be down to using too much detergent, or simply using the wrong type of detergent (powdered or liquid) in your dispenser. And while we might think the more detergent, the cleaner our clothes will be, it actually does the opposite.

"The most likely cause is to use too much detergent; excess powder or liquid can leave behind residual amounts that the washing machine cannot remove," states Barbara Stern, textile and bedding expert at Ottoman Textiles.

"Another cause is applying detergent onto clothes rather than into the water and creating high-concentration spots that do not diffuse evenly. Use the exact amount of detergent your load size and water hardness demand; the less, the better."

Overloading the machine

Overloaded washing machine with clothes spilling out of the door

(Image credit: Shutterstock)

Now, this is a mistake I’m guilty of making all the time — which has led to my detergent stains.

"Overloading the washing machine is also responsible since if the drum is packed full, water and detergent can't move freely, resulting in unbalanced distribution and sediment," Stern agrees. "Hard water will also exacerbate the problem, as minerals will cling to detergent and increase how hard it is to rinse."

In fact, overloading your washing machine is one of the most common washing machine mistakes. Not only can it lead to poorly-washed clothing but can put a strain, and damage your washing machine — leading to expensive repairs or a replacement.

Cold water washing

Person using the dial on the front of a washing machine to change the cycle

(Image credit: Shutterstock)

Another cause is using a cold water setting with the wrong type of detergents, and washing with the right water temperature for the type of detergent is essential.

"Some detergents, especially the powder ones, don’t dissolve well in cold water," states Alicia Sokolowski, president and co-CEO of AspenClean. "Use warm or hot water settings (garment permitted) when using powdered detergents."

Plus, cold water washing is likely to stain certain fabrics more. "Cold washes consume less energy but can prevent powdered detergents from properly dissolving, especially on non-absorbent synthetic fibers like polyester, nylon, or microfiber, which streak easily," adds Stern.

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Tips to avoid detergent stains on laundry

Woman holding stained white garment

(Image credit: Shutterstock)

Luckily, there are some tips to avoid unsightly detergent stains on your clean clothes. The key thing here is to dispense the right amount (and type) of detergent in your washing machine at all times.

"Add detergent to the dispenser (never on top of dry fabrics), use proper dosing, if you have any doubts about the load size, water hardness, and level of soil in the fabric, measure detergent dose accordingly," advises Scott Schrader, cleaning expert at CottageCare.

"If washing with powders in cold cycles, pre-dissolve powders in warm water, if using low or medium water levels. If you have a high-efficiency machine, use high-efficiency (HE) detergent, and follow the dosing recommended by the manufacturer. Use an extra rinse if your water is hard, or if you have used a heavy dose of detergent."

Additionally, avoid cramming items into your machine, even if you think it will save you time and water! "Avoid overloading your machine, as this allows water and detergent to move freely around clothes," adds Stern.

"To provide a second layer of security, run a rinse cycle to remove any remaining detergent residue, particularly when washing sheer fabric or dark colors that tend to reflect white residue more easily."

And if you do notice any residue left on your clothing, run an extra rinse cycle to ensure all it's all been washed away.

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Cynthia Lawrence
Cynthia Lawrence
Content Editor, Homes

As the Homes Content Editor, Cynthia Lawrence covers all things homes, interior decorating, and garden-related. She has a wealth of editorial experience testing the latest, ‘must-have’ home appliances, writing buying guides and the handy ‘how to’ features. 


Her work has been published in various titles including, T3, Top Ten Reviews, Ideal Home, Real Homes, Livingetc. and House Beautiful, amongst many.


With a rather unhealthy obsession for all things homes and interiors, she also has an interior design blog for style inspiration and savvy storage solutions (get rid of that clutter!). When she’s not testing cool products, she’ll be searching online for more decor ideas to spruce up her family home or looking for a great bargain!


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