I've done that for years; it is easy, cheap, and portable. CS made that way
is easily destroyed by light, I understand, so store it in a dark place.
Try to consume it immediately, for optimum potency; the silver tends to settle
out over time when made by this method.
Also, if you make CS this way, be sure and stand nearby until the process is
complete. Depending on the hardness of the water, the silver may be ready
in 30 seconds, to 3 minutes. If you take a phone call while making your
silver, you could return to find black muddy water!
Jill