FlyerTalk Forums - View Single Post - Where can I find descaling chemicals for my espresso machine?
Old Dec 18, 2008 | 7:12 pm
  #7  
HIDDY
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Join Date: Aug 2006
Location: Argentina
Posts: 40,867
Originally Posted by SoFlyOn
I guess nobody read my link on Eastbay1K's coffee thread ... all is revealed there
Must admit when I came to the piece below I read no further.

pHs = 44.15 + log(S)/10 - 13.12*log(T + 273) - log(H) - log(A)
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