The Stanley Company Says Stanley Tumblers Do Contain Lead But You Have Nothing to Worry About. Here’s Why.

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You know that Stanley cup you overpaid for? Well, turns out – it may be trying to kill you (kidding) but you may not like what I am about to tell you…

A few days ago, posts began circulating around social media that people were testing the Stanley tumblers for lead and to everyone’s surprise, they tested POSITIVE for containing lead.

As you can imagine, those posts went viral and the Stanley company decided to address the concerns and turns out, they do in fact contain some lead BUT you need to know some things about it…

In a statement, Stanley said:

“At Stanley, one of the key features of our products is our vacuum insulation technology, which provides consumers with drinkware that keeps beverages at the ideal temperature. Our manufacturing process currently employs the use of an industry standard pellet to seal the vacuum insulation at the base of our products; the sealing material includes some lead,” Stanley PMI said in a statement.

“Once sealed, this area is covered with a durable stainless steel layer, making it inaccessible to consumers.”


The company also said that Stanley products would need to be damaged, used in a way it is not intended or become exposed to extreme heat to expose the lead.

“Our engineering and supply chain teams are making progress on innovative, alternative materials for use in the sealing process,” a spokesperson told

In another statement, to WCNC, Stanley PMI reiterated:

“no lead is present on the surface of any Stanley product that comes into contact” with consumers or the contents of their container.

While that does give some insight to the lead situation, it doesn’t answer the question – if the lead is supposed to be sealed, how is it that people are able to get positive lead tests?

Doesn’t that mean that if a q-tip can detect lead, it is accessible to consumers and therefore, consumable?

I don’t know, I already wasn’t a Stanley fan (I tried it, it didn’t keep anything cold so I took it back) but now, I am glad I didn’t give into the craze.

According to the US Centers for Disease Control and Prevention, lead is a toxic metal that can lead to kidney problems, anemia, reproductive issues and developmental problems.

That isn’t a risk I am willing to take.

I think I’ll stick with my Simple Modern Tumbler instead. It is cheaper, cute and according to the website, does not contain lead. People are also saying HydroFlask doesn’t contain lead either!

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