Food News and Trends Stanley Is Being Sued for Putting Lead in Its Water Bottles Here’s what to know before using yours. By Carissa Chesanek Carissa Chesanek Carissa Chesanek is a food and spirits writer with more than 13 years of experience in the industry. She loves researching new trends, chatting with chefs and mixologists about their craft, and creating well-researched and fun copy for her readers. Allrecipes' editorial guidelines Published on February 28, 2024 Close The internet started serious buzz when several TikTok videos claimed the viral Stanley Quencher tumblers contained lead. After all the online chatter, the company is now officially being sued. Stanley's parent company, Pacific Market International, has two lawsuits against it (so far) due to traces of lead in its products. The potential class-action suit was filed by a Seattle-based firm on behalf of two women who stated their Stanely tumblers contained lead and they wouldn't have bought these cups if they had known about this. Interestingly enough, as of January, when you visit Stanley's support page, you'll find that the company does state that their cups' sealing process contains lead to help achieve the "vacuum insulation technology" that keeps these water bottles at the desired temperature. Justin Sullivan/Getty "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. Once sealed, this area is covered with a durable stainless steel layer, making it inaccessible to consumers." However, the company adds that even though some lead can be used to achieve this particular technology for these cups, it should not cause alarm. "Rest assured that no lead is present on the surface of any Stanley product that comes into contact with the consumer nor the contents of the product." Are Stanley Cups Safe to Use? It's not yet clear, but what we do know is drinking lead can pose a risk of lead poisoning, which has many health risks. According to the Mayo Clinic, "Lead poisoning occurs when lead builds up in the body, often over months or years." However, the site also states that the smallest amounts "can cause serious health problems." You can often have high blood levels of lead without knowing it, as symptoms can occur later once "dangerous amounts have accumulated" in the system. Some of the symptoms in adults can include high blood pressure, mood disorders, memory difficulties, and joint and muscle pain. There is no treatment for lead poisoning, which is why it's important to take steps to protect yourself. Hopefully the lawsuits will help clarify whether or not the lead used in Stanley tumblers has a direct effect on consumers or if we're safe as long as the cups remain undamaged and intact. And maybe this will even cause Stanley to drop the lead altogether like other popular water bottle brands. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit