No -- lol -- I'll leave that one to Neville!  There is some evidence, via our 
Hanna Testers, that the ppm-level of CS/EIS will drop a ppm or two within a 
couple days of brewing.  Some refer to this as *stabilizing*.  I believe that 
it 

is the contention of the knowledgeable members here that some of the ionic 
portion of the brew will change over to particulate matter, resulting in a 
lower 

ppm reading.  The real question is whether it's the ionic portion that is 
effective in killing pathogens, or the particulate portion.  Or is it both?  I 
don't know the answer -- for my own purposes, it doesn't matter.  But 
apparently 

Neville feels differently, and he was sharing that with Jan.  So I'm looking 
forward to his answer, as I'm sure Jan is!  :-)
MA




________________________________
From: needling around ptf2...@bellsouth.net

Thanks, MaryAnn.  That was not clear.  Do you know how to discriminate between 
the use of 'young' and 'old' CS?   

----- Original Message ----- 
>From: MaryAnn Helland 
>
>PT -- EIS and CS are the same thing.  EIS is just the term used here on this 
>list to differentiate the product that we make, vs. other silver products on 
>the 
>
>market.  Neville was discriminating between the *age* of the product, not 
>referring to two different products.

________________________________
From: needling around ptf2...@bellsouth.net
>
>Would you give your 'opinion' on the differences between EIS and CS, Neville?  
>It might help to discriminate when to use which one.



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