Hello Rajd! Thank you for your feedback. We want to let you know that certain dishwashing detergents, including Cascade Platinum Plus ActionPacs, can sometimes react with aluminum cookware, potentially causing darkening or discoloration.<br /><br />To help prevent this, please ensure that your pots are labeled dishwasher-safe and that you are using the product according to the instructions. Some aluminum items may be more sensitive to detergents and dishwasher conditions than others.<br /><br />If you have any further questions or concerns about how Cascade interacts with your cookware, please feel free to contact us at (800) 765-5516. We’re happy to assist.