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TDS - water in the boilers (V2B)
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Discussions > Espresso > Machines > TDS - water in...  
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Tonyv138
Senior Member


Joined: 16 Jun 2013
Posts: 72
Location: tx
Expertise: I love coffee

Espresso: V2B
Grinder: Mazzer SJ
Posted Sat Jan 25, 2014, 9:17am
Subject: TDS - water in the boilers (V2B)
 

Today i measured TDS of the water coming our of my steam and brew boilers, this is what I found:

Steam boiler is @ 134 TDS, while brew boiler is lower @ 90 TDS.

I "feed" the machine with the RO + sodium bi-carb, based on Dave's recommendation @70-80 TDS

I understand why it is happening in the steam boiler, not sure about brew boiler.

based on this 2 questions:
- why it is TDS is higher in the brew boiler than the incoming water?
- how often do you flush boilers to reduce TDS?

So far i started flushing steam boiler by the process of turning it off and letting hot water out through the hot water wand while the machine is off. This did not reduce TDS substantially yet.

Thanks
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DavecUK
Senior Member


Joined: 21 Sep 2005
Posts: 1,378
Location: UK
Expertise: I love coffee

Posted Sat Jan 25, 2014, 3:03pm
Subject: Re: TDS - water in the boilers (V2B)
 

Copper ions in the steam boiler water and some metal ions in the brew boiler water (just not as much leeches from brass. All perfectly normal.
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billc
Senior Member


Joined: 15 Jan 2009
Posts: 126
Location: Seattle, Washington
Expertise: Professional

Espresso: CC1 - GS - GS3 - GB5
Grinder: Baratza - Mazzer-Marzocco
Drip: My own Creation
Posted Sun Jan 26, 2014, 7:45am
Subject: Re: TDS - water in the boilers (V2B)
 

Were both measurements done at the same temperature?

BillC
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DeanOK
Senior Member
DeanOK
Joined: 24 Sep 2012
Posts: 647
Location: OK
Expertise: I like coffee

Espresso: QM Vetrano 2B
Grinder: Vario W
Posted Sun Jan 26, 2014, 9:57am
Subject: Re: TDS - water in the boilers (V2B)
 

I got similar results on my V2B  using bottled water that is distilled and then has minerals added back for taste

Bottled water  72 PPM
Steam Boiler   140 PPM
Brew Boiler     116 PPM

I put all three samples in clean glass containers and let them reach room temperature (or somewhat close to room temperature).

I am sure my steam boiler and brew boiler will have minerals in them because I have had the machine for several months and I have not descaled it. However, I don't think there would be much build up but I think I would be na´ve to think there was none. In fact, I have been trying to decide if I need to descale it at all. I wish I had a way to stick a little camera in the boiler and give it an inspection. I don't really want to descale unless it is necessary.
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CarloM
Senior Member


Joined: 1 Apr 2013
Posts: 319
Location: Los Angeles
Expertise: I live coffee

Espresso: Vetrano V2B
Grinder: Mazzer Mini-E Type A, SJ...
Drip: Toddy
Posted Mon Jan 27, 2014, 9:55pm
Subject: Re: TDS - water in the boilers (V2B)
 

Nothing to be worried about health wise, right?
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DavecUK
Senior Member


Joined: 21 Sep 2005
Posts: 1,378
Location: UK
Expertise: I love coffee

Posted Tue Jan 28, 2014, 2:18pm
Subject: Re: TDS - water in the boilers (V2B)
 

CarloM Said:

Nothing to be worried about health wise, right?

Posted January 27, 2014 link

Not at all...
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CarloM
Senior Member


Joined: 1 Apr 2013
Posts: 319
Location: Los Angeles
Expertise: I live coffee

Espresso: Vetrano V2B
Grinder: Mazzer Mini-E Type A, SJ...
Drip: Toddy
Posted Tue Jan 28, 2014, 4:31pm
Subject: Re: TDS - water in the boilers (V2B)
 

DavecUK Said:

Not at all...

Posted January 28, 2014 link

Thanks Dave. With Faema advertising Ruveco Teck in their Carisma

The Boiler is treated with the Patented Ruveco Teck. Ruveco Teck is a production process which drastically reduces the quantity of metal in the drinks delivered. All components that come into contact with the water used for preparing drinks and steam will undergo this new treatment. Ruveco Teck is NSF approved.

And then I read this thread about TDS going up after water has passed through the boilers (which on the surface makes perfect sense), I started worrying that we're all ingesting toxic levels of heavy metals! (as opposed to just listening to heavy metal)
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