Yeah. You definitely have to be extremely careful. I used gloves with every step. You don't want to get any colloidal silver on yourself. You also have to discard the plant after harvesting the seeds. You can't use any part of the plant for consumption. It must be disposed.
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Even breathing it in. Offgasing and literally spraying it
Good point! I hadn't considered that. Luckily, I sprayed outside. The risk of inhalation is probably minimal but not 0%. I'll be sure to wear a mask that can catch colloidal silver particles in the future.
All things considered, this technique should be used cautiously, though colloidal silver is low-to-moderately toxic (some people even consume it for "health"), it should be treated as a toxin.
Really great point ibe!