I would like to know how much metal is leeched from the tea kettle during brewing and if the tea leaves would help mitigate that in addition to the metals prese

I would like to know how much metal is leeched from the tea kettle during brewing and if the tea leaves would help mitigate that in addition to the metals present in the water itself. What is really being measured? Seems they’re overlooking a significant variable in the research. https://www.researchgate.net/publication/51485767_Tea_brewed_in_traditional_metallic_teapots_as_a_significant_source_of_lead_nickel_and_other_chemical_elements https://www.researchgate.net/publication/51485767_Tea_brewed...