Classification: UNCLASSIFIED Caveats: NONE With my 1 mill amp controller you can walk away and let it brew. How long it take is up to your set up. You can use a night light up against container to make some currents in water. I have one of the magnetic stirrers and brew a gallon at a time. How long it takes varies according to voltage (for start). Once you have some silver in water voltage drops to maintain 1 mill amp. You can also shorten time by seeding a new batch, with some from last batch.
Bob Classification: UNCLASSIFIED Caveats: NONE
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