HomeRoast Digest


Topic: Descaling Leads to Coarser Grind (14 lines)
1) From: Bob Hazen
For a long time I've read that scale buildup can lead to reduced brewing temperatures.  I've been using Cleancaf in my Technivorm since I bought it 3 years ago.  I >thought< I was effectively descaling it.  Now I think not.  
Having bought some Dezcal for another machine, I thought I'd try it in the TV.  The first pot out of the TV was bitter and lacked any complexity.  Yes, I did get all the Dezcal out of it - multiple clear water cycles.  The same coffee was tasty just the day before from the TV.  I got to thinking about brew temperatures.  Perhaps the TV was brewing hotter now.  In 20:20 hindsight, I should have taken TV's temperature before descaling.  So this morning I opened up the grind on my MDF from 9 to 12.  Once again with the same coffee, the flavor is back and with some different nuances (which may be from 2 more days of rest).  Regardless, yesterday's bitterness is gone.
Wile I don't recall gradually reducing the grind for use in the TV over the last three years, clearly after descaling with Dezcal I needed to get coarser.  Also, I thought that Cleancaf was doing OK as a descaler, but it seems Dezcal is better.  I suppose that's no real surprise as Cleancaf is touted as a cleaner/descaler.  Upon reflection, that label would seem to be mutually exclusive as cleaners are often bases and descalers acids.  Probably better done with separate solutions.  I think I'll stay with Joe Glo for cleaning and Dezcal for descaling from now on.
Bob
Homeroast mailing list
Homeroasthttp://www.homeroasting.com/gallery/main.php?g2_itemIdx20">http://lists.sweetmariascoffee.com/listinfo.cgi/homeroast-sweetmariascoffee.comHomeroast community pictures 9upload yours!) :http://www.homeroasting.com/gallery/main.php?g2_itemIdx20


HomeRoast Digest