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Cleaning my Zojirushi?

surfer1966 Sep 23, 2011 05:06 PM

Hi! I bought a Zojirushi CV-DSC40 for xmas and have been happily brewing tea for months. I notice a layer of hard water deposits on the bottom of the water container. Any tips on how I should clean it?

  1. cgfan Sep 23, 2011 05:10 PM

    I'd think that a soak in a solution of citric acid and water would do the trick. Citric acid is also sold in the Kosher section as "sour salt", but is also the ingredient used in commercial descaling powders.

    I've personally used it to descale my espresso machine.

    2 Replies
    1. re: cgfan
      surfer1966 Sep 23, 2011 05:19 PM

      How many parts citric acid to water do you suggest? How long do you soak for?

      1. re: surfer1966
        cgfan Sep 23, 2011 05:22 PM

        Here's both a source and some guidelines. I've always just winged it myself, without measuring, but to be sure follow these guidelines: http://www.orphanespresso.com/Citric-...

    2. a
      AaaaL Sep 23, 2011 05:55 PM

      I normally use vinegar but there are directions near the back of the user's manual on how to use citric acid.


      1 Reply
      1. re: AaaaL
        surfer1966 Sep 23, 2011 07:35 PM

        Thanks for the tips!

      2. s
        steveprez Sep 24, 2011 06:55 AM

        One way of dealing with this going forward is to only use distilled water in your hot water heater. We do that routinely. We just purchased a new Zojirushi as the previous one died of old age (>10 years). We never needed to descale the old heater over the entire lifetime. You do need to remember to buy a couple of gallons of distilled water every time you shop, however. Enjoy!

        1. Josh Sep 24, 2011 02:40 PM

          Buy citric acid. There's a chemical supply shop near downtown that sells it. It's quite cheap. The manual tells you how to mix the solution for this.

          3 Replies
          1. re: Josh
            surfer1966 Sep 26, 2011 02:54 PM

            Thanks for the tip! Do you know the name or what street it's on?

            1. re: surfer1966
              Josh Sep 26, 2011 03:51 PM


              Atlas Chemical

              1. re: Josh
                surfer1966 Oct 7, 2011 03:23 PM

                Thanks again for all the info! I purchased a pound of citric acid from Atlas Chemical and following the cleaning instructions I was able to get rid of over 95% off the crud at the bottom.

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