Dear Mr. Berger.
                        A comment regarding your prune juice container
experience:   In 1997, when two of our technicians were enthusiastically 
pursuing
multiple avenues of research on Colloidal Silver generation, they discovered 
that
most saccharides, glucoses and sucroses caused the yellow/gold color shifts to
occur----all harmless physiologically (based upon our evaluations).  The 
residual
sucrose/fructose content along the walls of the container, probably, caused the
reaction your CS experienced.
                No sugar-bearing compound (used in 50 to 500 mg amounts in  to 
16
oz  DW volumes) ever caused us any difficulty.......whatsoever.  In fact, all of
our staff members (4) currently generating their own CS, use one small drop of 
pure
honey (per 8 to 16 oz) as an accelerant.  Electron microscopy has not revealed 
any
detectable visual anomalies in any of the solutions containing any of the
glucose/sucrose/fructose accelerants.
                Conversely, we encountered many anomalies, including 
agglomeration,
from a wide variety of contaminated water sources (even slightly contaminated).
SODIUM CHLORIDE , even in small quantities, effected structural changes 
detectable
by electron microscopy (We did not conduct any form of toxicity evaluations for 
the
NaCl solutions).   Also, the amount of contaminating substance  required for
upsetting the generation of CS acceptable for internal use-----was quite small 
(as
little as 16-20 ppm)..  NO TAP WATER source ever facilitated the generation of
acceptable colloidal silver solutions.......based upon stability and visual
analysis via electron microscopy.
             I hope these observations will be of value to the discussion 
revolving
around solution colorations.
                                Sincerely.  Brooks Bradley.

[email protected] wrote:

> Steve:
>
> What is your starting current? What are your brewing paramters?
> It's an old song but I never get a color change with stirring and polarity
> switching.
> I always know the starting and end currents and since I measure every run with
> a spectrophotometer just to verify that the process stays in control.
>
> I use the plastic SOLO cup from the grocery store and never wash it, just wipe
> it dry with a clean paper towel.
>
> One time a 1/2 gallon went yellow when a used a prune juice bottle that still
> had a prune smell to it, the second batch was ok.
>
> Send me your parameters for brewing and the currents involved and I will see 
> if
> I can help you.
>
> "Ole Bob"
>
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