Huperchild wrote:
Onion soaks up heavy metal. Onion and garlic waste from the food industry could be used to mop up hazardous heavy metals, including arsenic, cadmium, iron, lead, mercury and tin in contaminated materials, according to a research paper published in the International Journal of Environment and Pollution.

[quote="Huperchild" post=1215084][quote="Micky" post=1215081]https://www.youtube.com/watch?v=cablDS4Z04M[/quote] why does he put an onion on the metal[/quote] Onion soaks up heavy metal. Onion and garlic waste from the food industry could be used to mop up hazardous heavy metals, including arsenic, cadmium, iron, lead, mercury and tin in contaminated materials, according to a research paper published in the International Journal of Environment and Pollution.