No, Rada knives are not dishwasher-safe. Although the manufacturers state that the knives with resin handles can be washed in the dishwasher, they recommend that they’d better be hand-washed for longer durability. Many customers complained about the black color of the resin handles staining their hands when cleaned by the dishwasher. Moreover, the knives with aluminum handles are not dishwasher-safe, and they tarnish as soon as they are cleaned in the dishwasher. Use Bartender's friend (powder) to get the handle finish back to its original beauty if the handle was messed up by the dishwasher.