Unfortunately, the manufacturer is not consistent in this regard. Manuals state that the container is dishwasher-safe. The container itself can certainly be washed in the dishwasher because it is made of stainless steel. I, on the other hand, would also recommend hand washing, so that on the one hand there are no water spots / salt stains and on the other hand the plastic elements such as the handle or the seals are also protected. To be on the safe side, I adjust the specifications here.