Stanley, a vastly popular cup company, is responding to claims that their products contain lead, confirming that, yes, lead is used in the manufacturing process. They then further clarified that the product must be severely damaged to expose the dangerously harmful chemical.

On the bottom of their cups is a circular stainless-steel plate covering a lead pellet. For this to pose any harm, the steel plate must be severely damaged, which a Stanley spokesperson has reported is rare but possible. The spokesperson also reported that the company is “making progress on innovative, alternative materials for use in the sealing process.”

Lead poisoning occurs after months or years of lead exposure and is typically more common in kids. Severe health complications and even death may occur at any age. In adults, symptoms may include high blood pressure, joint and muscle pain, difficulties with memory or concentration, headache, etc. (Mayo Clinic).

The United States has banned various lead-based products within the past 40 years, as well as updating policies. Stanley reported to NBC that they have followed every regulation policy.