Be sure to remove the magnets before washing your PlanetBox. PlanetBox compartments wipe down easily with a sponge and mild soap and water. Or you can put your PlanetBox in the dishwasher. All Dippers and the Satellite Dish are also dishwasher safe.
Do not use bleach or cleaners containing chlorine to clean your lunchbox. It is best to dry off your stainless steel immediately after cleaning if you do not want water marks to appear (water marks are harmless, however).