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Thread: Is this (bottled) water suitable for an HX espresso machine?

  1. #1
    Join Date
    Mar 2017

    Is this (bottled) water suitable for an HX espresso machine?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I'm currently in a rental in Portugal and would rather not mess about with installing filters for the time being. I found "Fastio" bottled water in the supermarket, which has very low TDS. As far as I know that's good for espresso machine health but I'm not sure if the TDS number tells the whole story so I thought I would check with the hivemind.

    Here is the data sheet:

    Dry residue (at 180șC) 34.0 ± 4mg/l
    Silica 9.6 ± 2mg/l
    pH (at 18șC) 6.0
    Sodium (Na+) 4.1 ± 0.4 mg/l
    Calcium (Ca2+) 1.3 ± 0.3 mg/l
    Potassium (K+) 0.6 ± 0.1 mg/l
    Hydrogen carbonate (HCO3-) 8.0 ± 0.8 mg/l
    Chloride (Cl-) 4.2 ± 0.4 mg/l
    Sulfate (SO42-) 1.0 ± 0.2 mg/l

    Firstly, will this water be gentle on my machine? I'd rather avoid descaling for the 1st few years of ownership as I don't know where I could get it done professionally.

    Secondly, is there anything about this water that will give obvious taste flaws?

  2. #2
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Warwick, QLD
    Behmor Brazen - $249 - Free Freight
    The low pH would be a concern for me.
    Better if it was Neutral or very slightly above...

    level3ninja likes this.

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