If your hard-anodized cookware has been damaged or ruined after being washed in a dishwasher, it is not advisable to continue using it for cooking. The hard-anodized coating provides a nonstick and durable surface, and if that coating has been compromised, it may affect the safety and performance of the cookware.
When the coating on hard-anodized cookware is damaged, it can expose the underlying aluminum material. Aluminum has the potential to react with certain foods, particularly acidic or alkaline ones, which may lead to the leaching of small amounts of aluminum into your food. This can affect the taste of the food and potentially pose health risks.
Additionally, the damaged surface may no longer provide the nonstick properties, making it more likely for food to stick and burn during cooking, resulting in an unpleasant cooking experience.
For these reasons, it is generally recommended to discontinue using hard-anodized cookware that has been damaged in the dishwasher. Instead, consider replacing the damaged pieces with new ones to ensure safe and effective cooking. To prolong the lifespan of your new cookware, always follow the manufacturer's instructions for care and maintenance, which usually include handwashing and avoiding the dishwasher.