Ode Coyote wrote:
I made a quart batch that metered at 79uS when done, dropped to and
stayed at around 40 uS for about 4 years on the sill.
I have no idea what the PPM was...probably over 100.
Crystal clear in the shade, looked like dilute milk in the sunshine.
Well, I don't see how it could have been silver oxide and silver
hydroxide, both have a solubility limit of around 13 ppm, for a total
maximum for both of around 26 ppm. Maybe there was some silver nitrate
(was the water exposed to air during a smoggy or stormy day), or silver
carbonate, from absorbed carbon dioxide? How long was it open to the
air while brewing. There is effectively no limit to the ppm of silver
carbonate generation if brewed very very long with exposure to air,
since the carbon dioxide absorbed by the water becomes silver carbonate,
allowing more carbon dioxide to be absorbed. Were you brewing inside
while cooking with a gas or wood stove, or heating with wood or an
unvented gas heater. All those can increase the carbonate formation
tremendously.
Marshall
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