Cleaning dishwashers

Discussion in 'Cooking Equipment Reviews' started by koukouvagia, Feb 11, 2010.

  1. koukouvagia

    koukouvagia

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    I'm very satisfied with my bosch dishwasher, it works perfectly. But I'd like some advice on how to clean it. Is it absolutely necessary? I've heard it's a good idea to run an empty cycle with vinegar. Should I do this even though I've never had a problem with my dishwasher?
     
  2. phatch

    phatch Moderator Staff Member

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    What I've found with my Bosch is that I need to switch between different detergents. It gets to where it doesn't rinse as well and then switching detergents fixes that. Vinegar has a similar effect but you have to add it to every batch. It's essentially like adding extra rinse agent.

    I rotate between the Costco brand which I use the most of as it's the cheapest and does a good job. Electrasol, though they just changed their name to what, Finish? And Cascade.

    Be sure to clean out the filters. I do mine about every 4-6 weeks. That helps a lot with the rinsing too.
     
  3. duckfat

    duckfat

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    I used to have a Bosch and during one of the repairs the Tech saw the Costco soap bottle and advised not to use it. He claimed that it would make a lot of suds and could damage the machine. No idea if it's true but I switched after that.
    To clean the inside of a SS machine I use bar keepers friend and a little elbow grease then run the machine a cycle to flush it out.
     
  4. phatch

    phatch Moderator Staff Member

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    I've run the costco stuff the most over 10 years. Hasn't affected the system yet. The repairs I've made have been because of the cheap switches.
     
  5. duckfat

    duckfat

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    Sounds like you may have had the same problem I had with my Bosch.
    I tried the Costco HE laundry soap and even if you put a tiny bit in the machine it will over suds and the machine has to run an extra 10-20 minutes to flush out the soap. I expect that may have been the same issue with the Costco dish soap. I still buy soap at Costco but I get the Cascade when they put it in the coupon book.
     
  6. ryan.brosseau1

    ryan.brosseau1

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    There are a few big things with the European dishwashers (like the bosch, miele etc):

    1, they need to be installed properly as per the instructions they came with (not seemingly an issue to the OP.

    2, The filters need to be cleaned and then re-installed properly on a regular basis. The manufacturers usually recommend daily to weekly. Do what you think is sufficient as long as it gets done.

    3, They use such a small amount of water compared to their American counterparts, that they also require a much smaller dosage of detergent. It will all depend on the brand and type of detergent, the type of water you have.

    When i was servicing and dealing with Bosch tech support, they recommend as do I, that a powdered detergent be used in all cases. Secondly rinse-aid must be used and the amount dispensed adjusted based on water hardness (more for harder water, less for soft) for the dishes to dry properly. The amount of detergent used is also dependent on water hardness, and the same rules apply as for rinse-aid. Soft water may require as little as 1.5 tsp of detergent. Also there is no pre-wash detergent cup. So detergent for the pre-wash is added directly to the machine. Again it may require as little as 1.5 tsp. Hard water may require a full detergent cup (which if i remember correctly is about 2 tbls)
    And lastly do not under normal use pre-rinse your dishes in your sink. This will effectively double the amount of detergent you add to the machine. IF there is no soil on the dishes then there is not soil to activate the detergent and it may not rinse out entirely during the rinse. Simply scrape the chunks off and go. Sure things like egg and oatmeal may need to be rinsed but what are you gona do.

    Old detergent is also a cause of poor performance and or detergent build up. If your detergent is caked or fails to dissolve properly then it may be too old. Moisture can get to it and after a time in the cardboard box it comes in.

    Cheap detergent isn't necessarily going to hurt the machine, but will often require to get the same results thus negating the cheap factor. Although some cheap detergents just don't do a good job and require so much that over-sudsing can occur and the European machines are quite sensitive to this because of the way they sense water levels.


    If this is the way you already use your machine then, baring any hard-water or rust stains, there should be no real reason to clean the machine out or change detergents.

    If you need to clean it or remove an over sudsing condition vinegar will work great. For harder stains like hard water a commercial dishwasher cleaner , like Glisten or Cascade or even Tang will work in most cases just fine.

    Hope all this makes sense
     
  7. phatch

    phatch Moderator Staff Member

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    One other thing I have to do a lot is clear the jets in the top sprayer arm. They're always collecting some bit of insoluble solids. The white immature watermelon seeds are probably the worst offenders.
     
  8. ryan.brosseau1

    ryan.brosseau1

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    Phatch:
    Solids should not be able to get through your filtration system, and then into your wash arms. Check to make sure that your filters are installed properly. I will assume that this is the newer Bosch you have: The blue arrows should line up and the filter plate (the flat one) shout sit flush with the bottom of your tank. Sometimes the stainless steel ones can become bent and allow particles to get beneath them. If you have a plastic one it can warp overtime from heat. Either way consider getting it replaced if you have this issue. If a large piece of debris gets past the filter it can damage the wash pump, or clog the drain hose.


    Also check that the two pieces of the round cylindrical micro filter are snapping together properly and not missing any parts. Sometimes the little plastic baffle ot the bottom can break off.
     
  9. phatch

    phatch Moderator Staff Member

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    Yes, they're installed properly. Been a minor issue since day one.
     
  10. ryan.brosseau1

    ryan.brosseau1

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    Oh well, I tried!
     
  11. whitney0125

    whitney0125

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    yes you can still clean it even though you are yet experiencing some problems about it. I think it is better if you do that than to clean that when their is something wrong with cleaning diswashers.
     
  12. homemadecook

    homemadecook

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    Yeah i agreed .find some way to clean dishes even there is a problem with ....well for me cleaning dishes is very important so that everything feels fresh and clean !