(FOX40.COM) — Stanley tumblers have become social-media famous in recent months and although they’ve been flying off retail shelves, news of lead being used to make them has consumers asking whether the stainless-steel cups are safe to use.
Lead is a natural metal that’s toxic to the human body. Lead is known to cause a range of health effects, from behavioral problems and learning disabilities to seizures and death, according to the United States Environmental Protection Agency .
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“Yes, Stanley uses lead in its manufacturing process for its cups, but they only pose a risk of lead exposure if the cover on the bottom of the tumbler comes off and exposes the pellet used to seal the cup’s vacuum insulation,” a Stanley spokesperson told today.com .
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They said no lead is present on the surface of any Stanley product that would come into contact with beverages.