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  • TampIt
    replied
    No, however brass boilers suffer so badly from the dreaded "fish oil taint" that it caused me to develop a simple test for it*.

    Also, there are hundreds (thousands?) of grades of stainless and they are far from equal. Several of the grades used in espresso gear taste metallic - presumably too many of the manufacturers use heavy smokers as their taste testers.

    Putting crap water into any espresso machine that runs at circa 9 atmosphere's pressure and 90 degrees Celsius is just asking for medium term reliability trouble.

    TampIt
    *Simple test:

    1) fill your espresso machine with enough of your chosen water to pull a couple of shots (FYI, I usually fill it to the max). Turn it on and (optionally after a single preflush to warm it all up) pull a 60+ml shot into a glass container you can cover. Let it cool down to room temp.
    2) Then immediately pour the same amount of water directly into the same type of covered glass container.
    3) After the "espresso water" has reached room temp, compare the two waters. Whatever the difference is, that is the taint that is present in every espresso shot you are pulling.

    Be prepared for a rude awakening.

    Leave a comment:


  • Dimal
    replied
    Originally posted by nate07 View Post
    What about brass boilers in comparative sense to SS and copper, do they have similar issues to SS?
    Brass/Copper Boilers are absolutely fine and do not suffer Pinhole/Crevice corrosion that s/steel ones do...

    Mal.

    Leave a comment:


  • nate07
    replied
    What about brass boilers in comparative sense to SS and copper, do they have similar issues to SS?

    Leave a comment:


  • steve7
    commented on 's reply
    That’s the one - still going strong 3.5 years later.

  • Andy
    commented on 's reply
    (this one)
    https://coffeesnobs.com.au/forum/cof...ge5#post649559

  • steve7
    replied
    Things have changed in Adelaide. When I lived there many years ago, the water tasted like it had been sitting in a black garden irrigation hose... in the sun. If you washed your car in the sun, it came out looking dirtier.

    Just on hardness, I don’t have my machine plumbed in so somewhere in these pages I wrote about a little filter setup using ion resins to remove the calcium etc. The setup recycles cartridges from the Sunbeam EM6910 machines. I bought a kilo of the resin and change the cartridge out every couple of months. Any water going into the machine goes through the fridge filter (Samsung) and then through the resin in the cartridge.

    About six months ago, after 3 years of use, I took the mushroom off the group head and while I could see some flecks of white, I’d say the machine was pretty clean. I have never descaled it. (Nth NSW water)

    Leave a comment:


  • Birkin7
    replied
    I am pretty sure they are SS compatible, the 2 links below especially the first one have some useful info.

    https://puretec.com.au/core/media/me...1f223dbd62847d

    ​​​​​​https://puretec.com.au/core/media/me...f46b4acefe8315

    Cheers

    Leave a comment:


  • nate07
    commented on 's reply
    Would the issues be the same with machines with brass boilers as well?

  • c0alJK
    commented on 's reply
    Not trying to take over the thread, but just to be clear pureau is intended to be a 100% pure RO water?
    Also filtering water after RO is not new its just a backup in case the storage tank somehow has impurities, apologies if I misunderstood your question, I think that's what you were getting at?

  • Lyrebird
    replied
    Originally posted by c0alJK View Post

    I did some searching on their website it says it is RO'd then filtered
    Since an RO is basically a sub nanoscale filter, something here doesn't add up.

    The difference between an RO and a nanofilter is basically one of pore size and terminology: for a nanofilter the cutoff is stated in terms of particle size (in the nanometres, hence the name) while for an RO the cutoff is stated in terms of molecular weight.

    Originally posted by c0alJK View Post

    "On a parts per million concentration (ppm), Noble’s Pureau still maintains enough mineralisation to be healthy to drink and will not draw minerals or nutrients from people’s bodies."
    That is true of all water. The idea that very pure water will "draw out" minerals or nutrients has been completely debunked by actual research.

    Leave a comment:


  • SanderP
    commented on 's reply
    I've been using Pureau for a while now with a pinch of SodiBic on my cremina there was no appreciable scale or corrosion.

    I've not popped the bonnet on my Pro600 yet so can't comment on SS impacts but I'm confident that it will be fine.

    Taste is good, I'd happily recommend it.

    Cheers

  • Barry O'Speedwagon
    commented on 's reply
    Yep, I've taken to buying a goonbag of Pureau when I go away (via car) to feed the espresso machine. Was in Bateman's Bay a month or two ago and looked at the kettle in the place I was staying and thought......I'm not feeding the Cremina that stuff.

  • yldlj
    replied
    Originally posted by Birkin7 View Post
    Hi, Have you contacted Puretec Filtration, their head office is in Adelaide. I am using their Balance Plus series on my espresso machine here in Brisbane.
    They were extremely helpful with information and advice when I was choosing a water filter setup for my machine.
    Their filters are made in Adelaide so I am sure they will be able to sort you out or point you in the right direction.
    Maurice
    No I haven't but have heard good things about their filters. I don't think they have anything suitable for SS boilers tho.

    Leave a comment:


  • Dimal
    commented on 's reply
    A pinch of Sodium Bicarbonate will fix that...

  • Birkin7
    replied
    Hi, Have you contacted Puretec Filtration, their head office is in Adelaide. I am using their Balance Plus series on my espresso machine here in Brisbane.
    They were extremely helpful with information and advice when I was choosing a water filter setup for my machine.
    Their filters are made in Adelaide so I am sure they will be able to sort you out or point you in the right direction.
    Maurice

    Leave a comment:

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