I have a theory that the reason, despite doing everything right, I sometimes end up with a small amount of sediment which settles or contributes to a little bit of opalescence when shaken up, is due to the hotplate. The hotplate regularly heats up, then turns off... waits... then turns on again etc. So since I have no stirring, only convection currents, my theory is the temporary lack of enough movement is what creates a little bit of silver oxide to precipitate or what ever.
Do all hotplates do this, where they heat up and turn off and only turn on again when they want to continue to heat?
Given this fact of mine, at least, what would be better to use higher heat? Or should I use lower heat in order to help mitigate this issue? I don't always have it, so I am just interested on theories as to what I will try next time I am ready to make a batch.