I'll add something to that if I may.
I brewed a batch several years ago in an approximately 2 litre crystal jug, the 
resultant solution was dark tea coloured.  I never used that vessel again, 
instead reverting back to 1 litre clear glass vessels, and have not repeated 
that coloration.  I suspected lead from the crystal to have been the cause of 
coloration.
N.

Date: Wed, 19 Aug 2015 05:58:53 -0400
Subject: Re: CS>
From: [email protected]
To: [email protected]

In order for a silver ion to become metallic it has to pick up an electron.  
Glass with the impurities involved in making it, can act as a solar cell and 
capacitor, carrying electrons on its surface. ANY electromagnetic field will do 
to provide electrons there.
True:  If the electrodes are very close to the bottom of the container, a high 
concentration of ions can interface with surface electrons and make a very nice 
difficult to remove mirror.
 The other place to find a free electron is at the air to water interface at 
the electrode which is also where water surface tension exists to trap any 
metallic silver being made.
When using a DC output, ions create a high concentration pathway in the water 
that forms an inverted arch between the electrodes.  If the apex of this arch 
touches the glass, a mirror is very likely to form.
Stirring is nearly a necessity when using DC output on the electrodes.

If the water has enough hydrogen peroxide in it, you can make great big shiny 
metallic silver flakes that grow and grow without raising the conductivity of 
the water very much...not sure why, but I have done it.

On Tue, Aug 18, 2015 at 2:52 PM, Bob Smith <[email protected]> wrote:







A friend recently started making EIS with the same one I have 
used for 15 years.  He has been making it for a good year now with the same 
kind of generator.  He just made a batch and noticed a particle that was 
obviously silver in the bottom of the brew jar that measures 3/8 long X 
1/8.  Plus when he wiped out the brew jar there were tiny specks of silver 
on the tissue.  I have never had this experience.   He is brewing 
at the 10 PPM level.    Ode????  Bob 
Smith