23 Things You Didn't Know Your Dishwasher Could Do—and 2 'Hacks' You Should Never Try

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If you've only been using your dishwasher to scrub plates and utensils, you're not taking advantage of its full potential. Here are 23 additional ways to put the staple kitchen appliance to work—and two misguided dishwasher hacks you should definitely avoid.

1. COOK SALMON.

Raw salmon on top of asparagus spears and garnished with dill and lemon, all in a bed of aluminum foil.
Raw salmon on top of asparagus spears and garnished with dill and lemon, all in a bed of aluminum foil. / iStock

Is it the most efficient use of your dishwasher? Probably not. But it's a fun experiment. According to this Real Simple recipe, you just need to season two salmon filets with olive oil, lemon or lime juice, salt and pepper, then seal them in two airtight foil packets. Place the packets in the top rack of the dishwasher and run a normal (soap-free) cycle, then remove and enjoy your fuss-free fish.

2. RINSE PRODUCE.

A pile of dirty, unwashed potatoes
A pile of dirty, unwashed potatoes / iStock

The next time you bring a large amount of fruits and veggies home from the store or farmer's market, don't waste your time cleaning each individual piece. Rinse them in the dishwasher instead. Put more fragile items such as tomatoes and peaches on the top rack, and toss studier produce like potatoes and cantaloupes on the bottom rack. Set your dishwasher to cold and then run a rinse cycle—no detergent necessary.

3. STEAM VEGGIES.

Asparagus in glass jars
Asparagus in glass jars / iStock

Brit + Co bravely tested this dishwasher cooking hack for you: Place chopped vegetables—green beans and asparagus work especially well—into a Mason jar, then add one cup of water. Season with herbs, spices, butter, or lemon, then seal it shut. Pop the jar onto the top rack of your dishwasher and run a normal cycle. You should have tasty, perfectly seasoned veggies when your dishwasher is done.

4. CLEAN MAKEUP BRUSHES.

A cup full of makeup brushes of various shapes and sizes sitting on a white countertop.
A cup full of makeup brushes of various shapes and sizes sitting on a white countertop. / gerenme // iStock

Don't waste time trying to get all of the built-up product out of your makeup brushes by hand. Instead, place them in the silverware caddy or tray of your dishwasher about once a month to remove dried gunk. This method also works for nail clippers, hairbrushes, and combs.

5. CLEAN YOUR COMPUTER KEYBOARD.

Closeup of keyboard keys covered in dirt and filth
Closeup of keyboard keys covered in dirt and filth / iStock

You may want to save this one for a true cleaning emergency, but sources like CNET say that many computer keyboards can be safely sent through the wash to remove sticky grime. (NPR gave the technique a thumbs up, too.) Some don'ts to keep in mind: Don't use soap, don't use hot water, don't put anything else in the dishwasher, and don't use the heated drying cycle. And once your keyboard has gone through the wash, make sure to let it air dry completely—for up to three days—before you use it again.

6. KEEP FOOD WARM.

A round dish covered in foil sits on a table.
A round dish covered in foil sits on a table. / iStock

Need to keep cooked food warm while something else occupies your oven? Your dishwasher can do the job. Just use the heat/dry cycle with no water, and your food will stay toasty until you're ready to eat.

7. WARM YOUR DISHES.

A stack of plain white dishes with a plaid background
A stack of plain white dishes with a plaid background / iStock

The same trick goes for your dishes. If you want to keep plates warm before serving, place them in the dishwasher with the heat/dry cycle switched on. Some dishwashers even have a specific plate warming setting.

8. CREATE UNDER-BED STORAGE.

Dust collects under a bed.
Dust collects under a bed. / iStock

When your dishwasher finally goes to that big appliance warehouse in the sky, don't just junk it. The Family Handyman wants you to know that the wheeled bottom rack can roll beneath a bed to create easily accessible storage.

9. MAKE A RIBBON OR THREAD ORGANIZER.

Stacks of colorful spools of ribbon
Stacks of colorful spools of ribbon / iStock

Here's another great use for parts once the dishwasher machinery itself bites the dust: Flip the top rack on its side, then mount it in your craft room. According to the household advice columnist Heloise, the tines that hold drinking glasses in place are also perfect for holding anything on a spool. If you don't have any craft supplies to organize, the rack can be used to hang tools in a garage or garden shed, too.

10. DISINFECT STUFF.

A large pile of colorful plastic toys
A large pile of colorful plastic toys / iStock

From kids' bacteria-covered blocks and plastic figurines to your pets' slobber-covered chew toys, the dishwasher is great for de-germing playthings. Place larger toys on the bottom rack, medium-sized toys on the top rack, and small toys in the silverware basket. To avoid any heartbreaking accidents, make sure to use a light wash cycle and avoid the heated dry option, which could melt plastic toys.

11. KEEP COOKING SPRAY CONTAINED.

A dishwasher with its door open
A dishwasher with its door open / iStock

The next time you need to coat a baking dish with aerosol cooking spray, use your dishwasher door as a shield. Open your dishwasher door completely and hold the dish above it as you spray, and the inevitable over-spray will end up on the door instead of all over your kitchen. The inside of the door will get a thorough wash the next time you do dishes, so there's no need to wipe up the mess. (But make sure that the dishes inside are dirty, or you'll end up getting oil all over your clean plates.) The same trick also works for measuring out messy powdered ingredients like flour.

12. COOK LASAGNA.

Lasagna with meat sauce sitting on a white plate on top of a green checkered tablecloth
Lasagna with meat sauce sitting on a white plate on top of a green checkered tablecloth / iStock

As Mythbusters and Alton Brown proved, it is totally possible to make an entire lasagna in your dishwasher. You'll want to ditch your baking dish for something a little more watertight, though—PartSelect recommends arranging the lasagna directly on a piece of foil, then folding it up tightly. Of course, you can cook a lasagna a lot faster in your oven, and cooking the noodles in your dishwasher isn't going to produce a crispy top. But your family members will definitely raise their eyebrows when you put "dishwasher lasagna" on the menu for the week.

13. PREPARE NO-FUSS LOBSTER TAILS.

Lobster tail and dipping sauce on a plate
Lobster tail and dipping sauce on a plate / iStock

The Sporkful's recipe for dishwasher lobster is super easy. All you need to do is cut a de-veined, de-shelled lobster tail in half, then put it in a sealable Mason jar with a stick (yes, a whole stick) of unsalted butter. Send it through a wash cycle, then enjoy flavorful, melt-in-your-mouth lobster.

14. MAKE A RAISED GARDEN BED.

Beet greens poking up through soil
Beet greens poking up through soil / iStock

Instead of throwing out your dishwasher when it nears the end of its lifespan, take the whole thing outside, fill it with dirt, and grow some veggies in the tub. (These instructions are for an old refrigerator, but they'll work for other empty appliances as well.)

15. WASH SHOES AND HATS.

A pair of really dirty white flip-flops sitting on top of very green grass
A pair of really dirty white flip-flops sitting on top of very green grass / iStock

From sweat-stained baseball caps to mud-caked shoes and sandy flip-flops, you can throw plenty of apparel in the dishwasher. Just don't wash your dirty shoes with your dishes.

16. RIPEN AVOCADOS.

A pile of avocados in various stages of ripeness
A pile of avocados in various stages of ripeness / iStock

A restaurant worker on Metafilter spilled the beans on his employer's trick for force-ripening avocados: Throw them on the top rack of the dishwasher for a cycle.

17. ORGANIZE WRITING UTENSILS.

Closeup of forks and spoons in a white dishwasher basket
Closeup of forks and spoons in a white dishwasher basket / iStock

When you toss your old dishwasher, keep the removable silverware basket. It's great for sorting pencils, markers, crayons, and other arts and crafts supplies.

18. GET YOUR HUBCAPS SHINY.

A hubcap of an old-fashioned red car with whitewall tires that show palm trees reflected in the hubcaps
A hubcap of an old-fashioned red car with whitewall tires that show palm trees reflected in the hubcaps / iStock

Instead of crouching down and trying to scrape all of the gunk and grime from your hubcaps by hand, remove them from the car and put them on the bottom rack of your dishwasher instead—preferably without your dishes.

19. CLEAN YOUR FAUX FLOWERS.

A basket full of pastel-colored fake roses and daises
A basket full of pastel-colored fake roses and daises / iStock

Plastic flower arrangement getting a little dusty? Sure, you could dust each individual petal—or you could just throw the whole thing on the top rack of your dishwasher and call it good.

20. MAKE A SPRAY-PAINTING BOOTH.

A gloved hand holding a spray paint can with a finger on the trigger.
A gloved hand holding a spray paint can with a finger on the trigger. / iStock

When you remove an old or broken dishwasher, you can use the box-like tub for spray-painting projects in your garage or shed. Spray whatever you're painting inside the tub, and it will contain keep the fine mist contained, preventing it from coating areas you didn't intend to paint.

21. BUILD A HAND-CRANK GENERATOR.

A close-up of a shining light bulb
A close-up of a shining light bulb / iStock

If your dishwasher dies but the motor is still serviceable, it may just help you survive the zombie apocalypse—or, more likely, help you charge your electronics while you're camping. If you're handy, making the motor into a pretty powerful little generator like this is a snap.

22. DRY YOUR HAND-WASHED DISHES.

Female hands washing a clear glass under a stream of water in a sink
Female hands washing a clear glass under a stream of water in a sink / iStock

If you're hand-washing dishes, there's no need for the stack of clean plates to clutter up your kitchen afterward. Leave them in the empty dishwasher to air dry. You can run the dry cycle, or simply crack the door and let them air out naturally. (Bonus tip: If you need your dishwasher to dry a full load of dishes more quickly than usual, there's a hack for that—they'll dry faster if you open the dishwasher door during the regular dry cycle.)

23. CLEAN YOUR HOUSE KEYS.

A woman dangles her keys in front of the camera.
A woman dangles her keys in front of the camera. / iStock

You probably haven't ever washed your keys (or thought about washing them), but let’s face it: They're disgusting germ factories. Keys touch a lot of different surfaces, bang around in your purse or pockets, get dropped on the ground, shoved into locks, and so much more. Who knows what nasty stuff they've come into contact with? To get them clean, just remove any novelty keychains, loyalty cards, or other items that shouldn't get wet, then toss the keys in the dishwasher, keyring and all. Be sure to thoroughly dry each one afterward to prevent rusting.

However, while there are many things you can do with your dishwasher, there are also a couple of things that you really, really shouldn't try:

24. DON'T USE IT FOR WATER-TIGHT FLOOD STORAGE.

Important documents such as a life insurance policy, 401k statements, last will and testament, all fanned out on a wooden desk with a cup of coffee sitting next to them
Important documents such as a life insurance policy, 401k statements, last will and testament, all fanned out on a wooden desk with a cup of coffee sitting next to them / iStock

You may have seen this so-called "helpful hack" online during recent hurricanes, but just because a dishwasher can keep water in, doesn't mean it will keep water out. In cases of severe weather, the dishwasher could come open, soaking whatever you sealed inside.

25. DON'T USE IT TO SEAL JARS.

Offset rows of sealed glass canning jars filled with peach preserves
Offset rows of sealed glass canning jars filled with peach preserves / iStock

Rather than using the usual water-bath method, some home-canners suggest tossing filled jars in the dishwasher to seal the lids and kill the harmful bacteria. But it's not actually a safe canning technique, since the temperature in the dishwasher doesn't get high enough to properly kill the microorganisms. Stick to boiling instead.