No, the Sedona trays are not dishwasher safe.Clean the trays and tray sheets with a mild detergent under warm water after each use.To clean the main body, first unplug the machine and then clean with a damp towel. Do not rinse the dehydrator with running water or submerge the dehydrator in water.In order to easily clean the screen and tray, cover with wet paper towels and soak for a short while.Make sure the trays and tray sheets are thoroughly dried before inserting them back into the dehydrator.Refer to the Sedona Supreme Dehydrator SDC-101 / SDE-P6280 / SDE-S6780 / SD-P9150 / SD-S9150 / SD-P9000 / SD-S9000 user manual for more information.