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11 Things That Should Never End Up in Your Washing Machine

Trust us, it's worth the extra effort of making sure these things never end up in your next load of laundry.

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Nothing is worse than shrunken clothes and a broken washing machine. But repairing a damaged washing machine is a whole other story—and a costly one, at that. To save yourself time and money, make sure these things never end up in the wash. Oh, and while you’re at it, check out the best washing machine cleaners to keep your appliance spotless.

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It’s happened to all of us. You’re at the grocery store, pay in cash, and get your change back, only to quickly stuff it in your pocket so you don’t hold up the rest of the line. Next thing you know, your washing machine is a tad louder than it should be and all of those coins are going for a swim in the washer. Those little pieces of metal might seem harmless, but they can cause some serious damage to your washing machine. “[Coins] can damage the fins on the drain pump if they make it past the filter,” says James Peters, Kenmore Laundry Product Manager. “Emptying pockets is the solution.” They could also get stuck in a drain pipe and block it so the water doesn’t drain or they might even shatter the glass of a front-loading washer. Or worse, they could damage the drum and puncture the outer tank, which could cost hundreds and hundreds of dollars to fix. Find out the 16 things that are totally OK to put in the washing machine, though.

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Panupong Harnkham/Shutterstock

Flammable stains

You’re about to run out of gas but you’re in a rush. So once you’re done filling up your tank, you quickly pull out the pump and—whoops, you spilled gas on yourself. It happens. But don’t make the mistake of throwing those pants in the washing machine. You might be eager to get rid of that strong smell, but gasoline doesn’t mix well with your washing machine. It might even result in a fire or an explosion. Not to worry, according to The Spruce, you can get those stubborn stains out by mixing two-parts baking soda and one part water and rubbing the paste into the stain. Another method is hand-washing them “in a sink or bucket with hot water and detergent or dish soap and hang dry,” says Peters.

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We know, it’s so much easier to just throw your lingerie into the wash with the rest of your clothes. Unfortunately, this could be bad news for both your clothes and your washing machine. Those hooks and wires on and in your lingerie could attach themselves to other clothing or even itself, resulting in rips and tears. This is particularly true for underwired bras. They could also hook onto parts of the washing machine, which could end up damaging the inside of the machine. Instead, opt for handwashing your delicates or buying a lingerie bag to wash them in. Here are some other ways to not ruin your clothes in the laundry.

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It’s only human to be forgetful sometimes—even if that means forgetting your keys in your pocket when they go through the wash. Well, as anyone with keyless entry or remote starters/unlockers know, water is not our friend. This could cause your keys to shortcircuit, which would bring on a whole other conundrum. But that’s not the worst of it. Just like coins, keys can scratch up the inside of your machine and damage the drum, too. Which, as mentioned before, can be a very expensive fix. According to Peters, “Emptying pockets is the solution.” These are the two ingredients you should be putting in your washing machine.

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successo images/Shutterstock

Pet hair

If you have a furry friend, there’s a good chance you can vouch for that fact that pet hair seems to show up everywhere. On your jacket? Check. On your rugs? Check. All over your bed? Double check. And the worst part? All that hair can clump together in the washing machine, which can clog its drain pumps and stick to the sides of the wash cylinder, William Bittner, vice president of North American sales at Speed Queen, a company that makes both commercial and residential washers, told Consumer Reports. Follow this helpful guide to make sure you know how to do laundry the right way.

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Andy Dean Photography/Shutterstock

Rubber-backed mats

Tossing a rubber-backed mat into your washer doesn’t do anyone any favors. In fact, according to James Peters, Kenmore Laundry Product Manager, “The rubber breaks down and can damage the pump if a large amount gets past the filter.” Here are some other ways you’re shortening the life of your washer and dryer.

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WAYHOME studio/Shutterstock

Running shoes

While sneakers are usually A-OK to run through the wash, trying to wash running shoes can end up being a pretty expensive mistake, especially if they end up shrinking. If you must wash your running shoes and their tag says they’re machine-safe, Livestrong suggests to remove the insoles and place each shoe in a separate pillowcase. Then, wash the shoes with bath towels to act as cushions.

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Africa Studio/Shutterstock

Small clothing

Small clothing, like baby socks, can also get stuck in not-so-easy to reach places. According to HGTV, those small items can make their way into your washing machine’s vents and hoses. No one wants to deal with a flood—instead, wash those tiny items in a washable, mesh bag to make sure nothing escapes. Time to replace your washing machine? These are the best washer and dryer sets.

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Waterproof clothing

Your clothes might be waterproof, but that doesn’t mean they’re compatible with your washing machine. “Washing something like a raincoat or mattress cover can create a condition where the material traps water over time like a water balloon filling up,” says Adkisson. “Then if it (the water balloon) suddenly ‘breaks’ during the spin cycle it then sends all that mass to other spaces, creating a severe unbalancing condition that can lead to the mysterious ‘exploding’ washing machine.”

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Excess detergent

The more detergent, the cleaner the laundry, right? Not exactly. “Using too much detergent can damage your washer,” says Adkisson. “Detergent residue can build up in the washer—and on clothes—resulting in unpleasant odors in the machine, clothes that are not completely rinsed, and over time, machine components can fail.”

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Excess laundry

It might seem easier to stuff as much as you can into your washing machine (especially if you have to pay per wash), but you’re not really doing yourself (or your wallet) any favors. When your washing machine is stuffed to the brim, there’s no wiggle room for your laundry to move around and actually get washed. Not to mention, overstuffing could damage the suspension and bearings of your washing machine. In fact, according to Adkisson, “Overloading is one of the top causes of washer and dryer issues that Sears Home Services technicians encounter.”


  • The Spruce: “How to Remove Gasoline Stains and Odors”
  • Consumer Reports: “Don’t Let Pet Hair Ruin Your Washer”
  • Livestrong: “How to Wash Running Shoes”
  • HGTV: “12 Things You Can and Can’t Wash in the Washing Machine”

Brittany Gibson
Brittany Gibson is a regular contributor to RD.com’s culture, food, health, and travel sections. She was previously an editorial intern for RD.com and Westchester Magazine. Her articles have appeared on Buzzfeed, Business Insider, AOL, Yahoo, and MSN, among other sites. She earned a BA in English from the University of Connecticut