When was the last time you cleaned the filter?

I did check the filter. It seems ok. I'll give it another look

The filter is clean. That does not seem to be the cause.

With this machine, are we supposed to rince all the items to ensure that there are no pieces of food left, such as a small piece of lettuce?

Whatever food was not rinced off will be on the floor of the machine or stuck on the dishes. I am concerned about the health risk if the rincing process does not remove all traces of food

I don't typically rinse my dishes prior to loading and I don't have that issue. My Bosch is 18 months old.

Thank you.

Mine is recent also. Is the last rinse water left in a bowl, for instance, clear or cloudy ? Mine is cloudy.

My wife and I are in confinement so we can't have anyone come in to check.

My concern, again, is health-related. I am wondering if I shouldn't do a rinse cycle after a wash

If I all Bosh machines worked like mine, I would worry less assuming that there is a sanitizing component that cleans that left-over "dirt".

I try to load bowls completely upside down or vertical, so I don't typically have rinse water left in bowls. The smaller, odd shaped objects that do hold water only hold a small bit. I don't think I'd consider any of it cloudy though. I wonder if you called Bosch if you could talk to a technical person for suggestions??

I may have to do that.

Apart from the left-over issue, we like the washer because it runs very quietly. Quietness was the principal reason why we chose this brand. The cleaning efficiency is so-so we find. Not better than our previous less expensive model.

Thank you for responding to my query.

I wonder if it might be plumbed wrong and sink water is backing up into it. I had that problem in my last house. Well, I assume it was plumbed wrong because the drain definitely backed up into it, especially if we ran the garbage disposal. I’d definitely call Bosch and ask to speak to someone with a technical background. My Bosch dishwasher is one of my favorite appliances. It ceans great and is very quite.

Good point about the plumbing. But I don't think this is the case because we recognize the "debris' as being from a previous wash.

Btw, do you find an observable difference in the result of the express/normal wash cycles (30minutes vs 2hours) ? We don't.

That was why we no longer have a Bosch. Anything on the top rack, especially glasses, never got clean.

Something is certainly wrong here. I have used the express/speed 30 cycle one time and it was not sufficient. In your owner's manual there should be instructions on how to check the drain valve for blockage. I almost always use the Auto cycle, and my rinse water is slightly turbid, but is because of rinse aid. If you are using the Normal cycle, I suggest trying the Auto cycle for a while and see if there is a difference. We very rarely have something come out with a spec on it. I always recommend as well to run the Heavy cycle at least once a month to really clean any junk out of the machine. Keep us updated.

Thank you. I will try what you suggest. I will also follow-up more carefully on Becky's suggestion about the plumbing. As I said, we find no difference between the results of the express and the other cycles. There are nearly always encrusted spots no matter the length of the cycle, so we now use only that short cycle. We now fully rinse everything we put in so no debris is left in the bottom of the tub or stuck to the washed items. Btw, we still like the machine, but only for its quietness. We can barely hear it. That's fantastic because it is not far from our TV room.

Again, thank you for your help.

You shouldn't have to completely rinse your dishes before putting them in the dishwasher. The bits and pieces in your photo are pretty big. You need to scrape your dishes of large bits but not necessary to completely rinse.

I take it from your comment that the debris in the photo would be too large to be evacuated. That is really what I want to know. The machine we had previously (a Kenmore) never left things like that in the bottom of the tub, or worse, stuck on the dishes themselves. But I would not go back to it because of the noise. I will accept a less efficient but quieter machine. I am now doing a "heavy' wash, as suggested by doreycrouse above. I'll see if that improves the cleaning performance. I will also take off the spray arms and clean them as indicated in the owner's manual Btw, do you think it would it be a good idea to do a wash with CLR solution ?

Thank you for your input.

I recently learned that super-quiet dishwashers don't have grinders that are installed in noisier ones. I don't know if this true, but if it is, it would explain my issue. That machine is wonderfully quiet.