I see these cups often on the daily train commute to/from work and was curious how much these cups cost. However I came across this recent article.
What do you think? Is this old news? Does this sound like a rival company's marketing campaign to get more market share?
For those who own the cup, it's at the least worth a check inside your cups to ensure the vacuum seal is not compromised.
I think you should be ok, providing you don’t eat the cup, or grind it, or sand it, or heat it to melting point, or pick the lead out and inject it, or burn it and inhale the fumes…