How does this become 4 oz?
Start with glass - the largest I have is a sun tea jar with rubber/plastic spicket. If this not good, then I need one with non-metal top?
The action of SSKI on metal/plastic is what?
Distilled water -
how much water for 125 g. Potassium Iodide?
I don't want to screw this up, so need help....I can write a sonnet, but am not the numbers girl.