I see that @janoshik offers heavy metal testing but I can't recall ever seeing a lab test with that result (positive or negative) on it. Is it not commonly ordered or do people just not post the results?
Side note: if heavy metals were present how big are the particles? Would a standard .22 syringe filter catch them?
Side note: if heavy metals were present how big are the particles? Would a standard .22 syringe filter catch them?