As we have seen before, the hard anodized cookware is not compatible with dishwashers. To be fair, some of the products are labeled dishwasher safe, but it is still advised by the experts to wash them by hand. This is mostly observed in the case of hard-anodized cookware. They are not compatible because the dishwasher cycles corrode the surface of the cookware. Harsh detergent if used in the dishwasher can result in the cookware losing all its signature qualities. For instance, the body of the cookware will darken over time, and this will decrease the durability of the product.