The holidays seem to test the true capacity and cleaning power of your dishwasher. Although some wash by hand, those who have dishwashers rely on them pretty heavily this time of year. Keep them running like new, or as close to it as possible with these simple tips!
Amy Wood over from Mr Appliance shared a few dishwasher efficiency tips after our recent post on 7 Kitchen Crannies To Clean Before The Holidays. We'd already been doing several of them, but a few were new to us, so we thought they might be to you as well.
- Run An Empty Load With Vinegar: It’s the same concept as running a vinegar load in your washing machine, you simply toss a cup of white vinegar into the bottom of an empty dishwasher and run a normal cycle. It cleans out old food particles to keep your dishwasher smelling fresh.
- Don't Confuse Scraping For Washing: No one wants to wash their dishes before they wash their dishes, it's just silly. But you wouldn't want to eat a Thanksgiving dinner and then go run a marathon right after, well neither does your dishwasher. Scrape food bits off before loading up to help reduce particulates stuck on dishes once the cycle is over.
- Run The Hot Water Before Starting: Load your dishes like normal and then run the hot water in your kitchen sink until it's hot to the touch. By doing this, it means your first fill cycle will be hot instead of cold water running in until it finally makes its way over from the hot water heater. This is an especially important tip in winter time as it takes an extra amount of time!
- Check Your Water Heater's Temperature: There's a joke about where to put the thermometer, but we'll pass this time around. Make sure your water heater is set between 120-125 degrees. Many units are shipped new with much lower heat. Don't be tempted to do higher however or else it will cause water to flash dry and not roll off your dishes, taking the ends of the dirty bits with it.
- Use The Right Cycle: It's tempting to use a lower setting to save on bills, but make sure you're washing all your super dirty dishes by hand if that's the case. Just like doing your laundry, keep soil levels together when washing to end up with the best performance.
- Don't Double Up On Rinse Aid: When looking to purchase a new soap for your dishwasher, make note if it includes a rinse aid. If it does, then there's no need to add any extra. If it doesn't, skip the extra purchase and just fill the reservoir with white vinegar. It'll do the trick every time!
- Test Your Water: Hard water is killer on dishes and your ability to really get things clean. Make sure to have things tested and soften accordingly.
- Don't Over Crowd: It's something that's easier said than done. It's quite tempting to layer in one more bowl or plate to avoid hand washing. Just remember, it's easier to wash a few pieces by hand than it is to rerun an entire load because things were too tightly packed.
- Clean The Traps: Down in no mans land, under the lower sprayer, there's usually a piece that is removable. Under it you'll usually find bits of food that didn't make it out the drain or even pet hair (as gross as that thought is) if you have a fur ball of any kind running around your home. Sometimes the tray comes out fully so it can be rinsed in the sink, sometimes a towel is needed to remove the gunk build up.
- Clean Your Seals: After a few months of use, your dishwasher accumulates a little bit of ick and stick around the rubber gasket in the door as well and often around the soap door as well. Make sure to give them a once over with a damp towel to keep the grime down.
Related: Kitchen Keeping: Don't Use Too Much Dishwasher Soap
(Image: Flickr Member mylissa licensed for use by Creative Commons)
Elizabeth Apron fro...

Great tips-thank you!
THANK YOU! These tips are super helpful; will be using them this week!
Thanks! I'll def try some of these.. my dishwasher sucks.
definitely going to try the vinegar trick!!!!
Also, check the spinning sprayer arms. Food and other gunk can collect in the holes preventing proper water flow. You should be able to pull out any trash easily with a pair of tweezers.
Muchas Gracias!!!!!!!!!!!!!!
thanks you for these tips! i just recently moved to a house with a dishwasher, and i feel a little lost about the rules, since i've never had one before.
I always rinse every last bit of food off of every dish before loading the dishwasher, but I rent and I don't believe the person who lived here before me did that because sometimes I find random food chunks stuck to things. Thanks for the tips!
Great advice. They also sell these bottles of dishwasher cleaner. You take off the cap and invert it into an empty dishwasher, in the utensil tray and run a cycle. The wax top melts from the heat and distributes the cleaner. We went through a couple last year when our dishwasher was having alot of issues. I never knew for sure but it was a combination of hard water and accumulated gunk.
Thanks! I had a totally ineffective dishwasher until I realized that lots of the cycles were being run cold because we have a really long run to our kitchen from the water heater. That's why I now fill the dishwasher first, and then run it only after I do the things I hand-wash.
And I did not know that white vinegar is a substitute for jet dry! AWESOME!
Ugh, gross to think about, but this is super helpful. I'll be trying some of these things.
Thank you. Very helpful.
MegP: rinsing thoroughly like that is not only unnecessary and a complete waste of water (scraping is fine!), but can lead to damage, particularly of any glasses you put in the dishwasher - dishwasher soaps are designed to dissolve food particles off crockery, cutlery and glassware, if there's not enough food particles, they'll start on the actual items in there, leading to that horrible cloudiness on nice glasses...
Thank you, FoodieGreenie - you took the words right out of my mouth!
I have friends who do this with their brand-new-top-of-the-line dishwasher and it drives me CRAZY.
Wow. those tips are awesome!
I wish I had a dishwasher though! :) Living in NYC, dishwashers are definitely a luxury!
After doing a lot of recent research on why my glasses and cutlery were coming out with cloudy residue this is now what I do with each wash.
Pour a liite water onto the door to wet it, then sprinkle baking soda on the inside door, of course.
I also throw tablespoon or so of Calgon into the bottom
Add vinegar instead of jet dry to the rinse aid.
add the proper amount of dishwasher detergent
Run the hot water tap until you feel the hot water
It sounds like a lot of work but it isn't really and for those who experience cloudy glasses this is really great. Then turn it on: I no longer have any problems with cloudiness.
also - if you live in a rental with a cheap dishwasher (as I do) then buy good dishwashing detergent and not a powder!
I love and recommend Mrs. Meyers - don't use a citrus scented one if you have nice silverware. I use the lavendar and love it!
(Real Simple also rated Mrs. Meyers the best dishwashing detergent).
great tips-
also I found that my dishes didn't get clean with a certain detergent (palmolive eco). I thought my dishwasher was going to crap but now I just use the target brand liquid detergent and everything comes out fine! Recently my sister mentioned she thought her dishwasher was becoming no good and it turns out she was using the same kind :-/
May have to try mrs. meyers though!
What would happen if I used apple cider vinegar (already on hand)?
Thanks FoodieGreenie and leepert, you took the words out of my mouth!
Please, please, please don't waste water by rinsing your dishes. Try taking your rubber spatula and scraping the food off instead-no water wasted, no harms done to your dishes and it's fast and easy!
Definitely going to try the vinegar trick. Thanks!
Vinegar works a treat to get that awful orange tinge off the inside of my dishwasher after a big night of Spaghetti Bolognaise. Didn't realise it worked with the Washing Machine though, cheers for that info! :D
I'm also a 'pre-rinser' guilty as charged - but rather than leaving the water running, it works just as well to fill the sink with a few gallons of hot water and use the same tub of water to pre-rinse all the dishes. I've had dishwashers where scraping was fine, but have also had several dishwashers wherin the same isn't true. I should probably be hand washing all my dishes until I can afford to replace my non-efficient dishwasher!
I disagree with the comment on increasing your water heater set point, purely from a saftey standpoint that has been done to prevent fatal burns in the elderly and children whose fragile skin cannot tolerate hotter water. The combination of dishwashing liquid and 100 degree water is sufficient to sanitize.
How much harder is it to just do the dishes by hand compared to "pre-rinsing" (especially if you're getting every food particle off)?
Will white vinegar help with hard water? We live in an apartment with SUPER hard water. It's a huge pain, chalky stuff all over everything.
Palmolive Eco doesn't have the phosphates in it, and if you have hard water, as I do, it will build up eventually. I called them to complain, and they suggested sort of vinegar-bombing it. It worked. I occasionally add it with better results. I prefer Ecover or Method, but the price is so high, P.Eco is often the better choice, especially since I can't recycle the Method tubs.
Especially since they mail you a coupon for a free bottle if you call. :)
How do I get my stubborn father to stop pre-rinsing the dishes? He rinses them so thoroughly with hot water I cannot tell whether the dishes in their dishwasher are clean or dirty. Drives me crazy!
I use the Ecover tablets. They work about 95 percent as well as Cascade (in my experience) and they're more environmentally friendly. I buy them at Whole Foods, but I believe Amazon has them at a good price.
I am doing a cleaning with vinegar as I type. I keep getting small food particles on my glasses and it was driving me crazy. Thanks for the tips!
Water temperature is important. Many modern dishwashers have water heaters built it to bring it up to the appropriate temperature. Make sure yours doesn't already do this before running the sink to get hot water, or tweaking your water heater temperature.