Do You Need to Rinse Dishes Before Placing in Dishwasher?

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Subject: rinse or no rinse

i started out rinsing, just to be on the safe side. after a while, i ran a test of not rinsing some bowls and dishes (no big food bits), to test how well my dishwasher and detergent did the work. it turns out, the dishes were cleaned just as well, without my pre-rinsing. i progressively left dirtier dishes in, and see how well they do the jobb. it turns out too, that they really can handle rather greasy, dirty dishes.

i use cascade, and dishwasher is samsung (it's not even a very recent model).


Subject: rinse or no rinse

i started out rinsing, just to be on the safe side. after a while, i ran a test of not rinsing some bowls and dishes (no big food bits), to test how well my dishwasher and detergent did the work. it turns out, the dishes were cleaned just as well, without my pre-rinsing. i progressively left dirtier dishes in, and see how well they do the jobb. it turns out too, that they really can handle rather greasy, dirty dishes.

i use cascade, and dishwasher is samsung (it's not even a very recent model).


Subject: Rinse!

I can't imagine that the people who don't rinse don't have issues with bacteria and odor in their dishwasher. I have observed at several friends homes dishes that still stink after coming out of the dishwasher and it's the homes that don't rinse and only run the washer every few days.

I'd like the culture the plates and see what's really going on but the smell gives me a clue.


Subject: Rinsing dishes???

I have been washing dishes in a dishwasher for years without rinsing them, just scrape off the larger things and put them in. We wash about twice a week and we never have any smells coming from the dishwasher. We have never had a problem with any of our dishwashers. If you are going to rinse them why not just go ahead and wash them by hand!


Subject: Rinse or not to rinse before putting dishes in dish washer

I've been keeping house for a very long time and have had a number of DW. For many years I pre rinsed. Such a waste if time,money and water !!!Recently I started useing cascade platinum pods. Amazing. Still scrape off large particles of food but stopped rinsing all together. I only run my DW about once or twice a week. No bad smell and the dishes come out sparkling clean. Even dried on egg yolk. Let's think about the environment folks!!! Btw my dish washer is 10 years old.


Subject: Rinsing with dish-wasing soap vs. with

I have an old Bosch dishwasher, which may be about... 15 years or so old. I think it works quite well, but I have a question for anyone who could provide some reasonable answers. My wife read an article somewhere that said that pre-rinsing should never be done with regular dish-washing soap or foam (like Dawn) that is not made specifically for dishwashing machines, because if any soap is left on the rinsed dishes, the foam can't be washed away from the dishes when the dishes are cleaned by the dishwasher (with detergents made specifically for dishwashers). To me, this doesn't make sense, but my wife insists that I should NEVER leave any soap or foam AT ALL when pre-rinsing dirty dishes (otherwise, we would end up eating all the unwashed soap/foam). Does this make sense to anyone, and if so, could you educate me as to how that makes sense?

Anita Jones

Subject: Rinsing dishes before washing

If I were going to wash dishes in Dawn, etc then rinse them thoroughly as part of the pre-rinse I see no reason to have a dishwasher. I rinse mine with water only if there is greasy or dried on stuff and have never had a problem. If I am alone at home I hand wash and rinse and put them in the dishwasher to air dry and I think the dishes look better than when they are washed in the dishwasher.

Yves Parent

Subject: Good machines don't need pre-rinsing

Good machines are designed to process food particles by grinding them similarly to a garbage disposer, but to a smaller scale. If you scrape your dishes to the compost before putting them in it should be fine with a well designed machine. Such a machine will handle food soils that may dry on if for instance they sit in there for a couple of days -- it' s OK, better save water by running a cycle with a full machine! Not pre-rinsing should not impact the life of a quality machine at all. I had a used Kenmore I ran like that for 5 years and I had to sell it "like new" as I moved. If you have to rinse before the machine, you are basically wasting water.


Subject: rinse dishes or not

I have always rinsed my dishes before running the washer,
and I do normal loads, do not cram lots of dishes into it.
I have a Kenmore and it is now 19 years old.
I use soaps made for dishwashers, Cascade, Finish, etc, as
directed and the liquid Rinse, such as Jetdri,
I also have a water softner connected to the Hot Water heater.
It still works fine, and the whole purpose of it for me is to
sterilize my dishes and silverware.


Subject: Rinsing dishes first before dishwasher washing?

Since newer dishwashers are vying for low power use, they have stopped installing a heater coil. That gives them a good rating, but hot water is needed to wash and rinse well. Much food has fat in them that coagulates when the plate; food is cold and cements to the dishes. Also, it would really depend on how fast hot water gets from the tank to the (cold) dishwasher. The further away from the dishwasher is from the tank, the longer it takes to get hot in the dishwasher. Also, if your pipes run under the house and are not buried, they cool very quickly. It takes us 5 minutes of running water from the hot tank to the kitchen to get even medium warm. The cold dishwasher takes most of the heat and leaves the washing water very cool. Tip: Open your dishwasher at the first wash and take the water temp with an instant food thermometer.

John Moriarty

Subject: cleaning dishes before dishwasher

American dishwashers supposedly have a small disposer mechanism built in to take care of minor food wastes. European models, such as our Bosch, have no such mechanism, but have a removable filter that one should clean out periodically. We don't usually rinse dishes but we do scrape any significant waste off. I do clean the filter from time to time, but have never found much in it, so maybe we do OK without rinsing.

John Zang

Subject: rinsing dishes first

We have always rinsed our dishes and silverware prior to loading in the dishwasher including partially soaking any stubborn food remnants prior to rinsing clean. It's a little extra effort but we have avoided any unnecessary service calls. We then know our dishes will be completely clean and sterilized for future use.


Subject: ...and rewashing after

I hear you, zardac! I recently purchased a Samsung dishwasher ( as I have a washer and drying by them that I like) and it is useless! Not only do the dishes have to be rinsed clean before going in, unless I use the high heat sterilize cycle I have to redo items that come out with bits of food stuck to them. And the store from which I bought it is useless as they don't service that brand.


Subject: rinse dishes first

I agree with zardac's comments. I always rinse dishes first. I have a relatively new Bosch dishwasher and if I don't rinse, some food will just be moved from one item in the dishwasher to another, even if they are very small items like ground pepper.

Gary G

Subject: rinsing dishes

Dishes have to be rinsed before using any dishwasher I have used to avoid baking on protein.


Subject: Rinsing Dishes

It also depends on how frequently the dishwasher is run. If the appliance is run immediately after meal completion it may not be necessary to rinse. However., if you wait a few days for the dishwasher to have a full load, any food that is left on the dishes will have hardened making it almost impossible to remove except by hand washing.


Subject: Rinsing dishes that go intoxicated dishwasher

I agree. There are only two of us and we run our dishwasher once or twice a week. Our dishes would be impossible to get clean! My dishwasher is old. When do you know when you need a new one? My glasses are all etched and cloudy.

Anne Feerick

Subject: washing dishes before using dishwasher

Just fill small pan of HOT water and use a pad to rinse, otherwise its a waste of energy and water if you do them in the sink, use foil on bottom of roasting pans and they don't get dirty sticky residue that need scrubbing just a rinse off after use


Subject: rinsing dishes first

We got a new dishwasher a couple of months ago, and it seems to require the same preparation as other dishwashers I've encountered through the decades.

Without rinsing we end up with what seems to be ossified food matter on our flatware and dishes.

Our dishwasher would be better named a dish-somewhat-cleaner.

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I second the original question (still unanswered). Speaking as someone who logged in today to try to find an attorney, I see this category as one that's exactly what I have my Angie's List membership for:

1. It's important that I find a good one
2. I'm not an expert enough to know myself who is a good one
3. The industry is full of advertisements and misinformation
4. I wish I knew what experiences other people have had

I don't care about lawns--I planted mine in clover and don't have to mow it. When I do need to mow I use a rotary Fiskars mower, which is great--or a scythe. That's right--a scythe (the European type, which is smaller, and it's very good exercise). Gas-powered mowers, chemical fertilizers and weed killers--all nasty stuff that gets into everyone's air, soil, and water. I'm sure my neighbor doesn't like my wildflowers, semi-wild pockets of fruit bushes, and unmown areas and yes, dandelions (I have 10 acres) but that's too bad. It's better habitat for wildlife, especially the pollinators on which our food supply depends. I think this obsession with the Great American Lawn is a waste of time and resources. Plant some food instead.

I'm not sure Angie et. al. want you to have a complete answer to this question. By re-subscribing at the Indiana State Fair in 2012, I think I paid $20.00 per year for a multi- year subscription. Maybe even less. At the other extreme--and I hope my memory isn't faulty about this--I think the price, for my area, for ONE year was an outrageous $70.00. And they debited me automatically without warning. I had to opt out of that automatic charge. I like Angie's List, but if some of the companies they monitor behaved the way they do in this respect, they'd be on some sort of Pages of Unhappiness. I'll be interested to see if this comment gets published or censored out of existence.

That's very difficult to answer without seeing the house. As one poster said, the prep is the most important part. On newer homes that don't have a lot of peeling paint, the prep can be very minimal even as low as a couple or a few hundred dollars for the prep labor.

On a 100 year old home with 12 coats of peeling paint on it, then the prep costs can be very high and can easily exceed 50% of the job's labor cost.

A 2100 sq ft two story home could easily cost $1000 just for the labor to prep for the paint job. That number could climb too. Throw in lots of caullking  or window glazing, and you could be talking a couple or a few hundred dollars more for labor.

Painting that home with one coat of paint and a different color on the trim could run roughly $1000 or more just for labor. Add a second coat  and that could cost close to another $1000 for labor.

For paint, you may need 20 gallons of paint. You can pay from $30-$70 for a gallon of good quality exterior paint. The manufacturer of the paint should be specified in any painting contract. Otherwise, the contractor could bid at a Sherwin-Williams $60 per gallon paint and then paint the house with $35 Valspar and pocket the difference. $25 dollars per gallon times 20 gallons? That's a pretty penny too.

That was the long answer to your question. The short answer is $2000 to $4000 and up, depending upon the amount of prep, the number of coats, the amount of trim, and the paint used.