Our stainless-steel bottles are tested by accredited third-party laboratories and are found to be free of lead on the surface, as well as the interior of the product. As such, a customer will not be exposed to lead simply from touching, handling and drinking out of the product. It is important to note however, that our manufacturing procedure uses a pellet containing lead in the vacuum insulation sealing process. This lead used in the sealing process is inaccessible to consumers once the manufacturing process is completed. Under normal conditions of use, a consumer will hence, not be exposed to lead while using our product. In the rare case that the base cap of the product is damaged or removed, there is a small but unlikely chance that lead exposure could occur. If this were to happen, please contact our Customer Service team and we will be glad to provide you with a replacement at no cost as part of our commitment to providing safe, high-quality products.