I check the 9v batteries when the brewing time starts to get long - if you can touch your tongue to both terminals of the battery and not feel a pretty good tingle, recycle 'em.
I just had a batch turn grey, it was stored in PETE plastic jug on the stove when my son made tater tots in it, which realy got the CS hot. The batch in the glass jar stayed the same (slightly yellow), but the batch in the PETE went grey, like there was charcoal in it. I suppose the silver coming out of ionic state into larger particles? Tasted stronger, but still use it, albeit the dogs and cats are getting the lion's share of that batch. Interestingly, when I pour it into the ceramic dog bowl and add tap water, it will go clear in a few hours....but I'm not tasting it to see if it is still potent! Dogs and cats don't seem to mind the flavour... -- There exists a law, not written down...but inborn in our hearts; a law which comes to us...from nature itself... not from theory but from practice, not by instruction but by natural intuition. I refer to the law which lays it down that, if our lives are endangered... any and every method of protecting ourselves is morally right. - Cicero Mark S Siepak -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>