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" -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] List maintainer: Mike Devour <[email protected]>
