Do old tins have lead?
I've heard that old tins may contain lead, which can be harmful to human health. Is this true? And if so, how can I tell if a tin contains lead? Are there any specific types of old tins that are more likely to have lead in them? Are there any steps I should take if I come across an old tin that might contain lead? I'm interested in learning more about this issue and taking the necessary precautions to protect my health and the environment.