All parts of the PortionPro Rx that come in contact with pet’s food are made of food safe materials and easily removable for cleaning. Also compressed air cans can be used to remove small particles of food in the food bowl and food belt assembly receptacles. We recommend periodic cleaning to remove kibble debris and grease that are left behind. The pieces can be easily cleaned with some dish detergent, a sponge, and paper towels. We do not recommend any sort of dish washing cycles that involve heat as this can lead to warping of the food bin. For more complete instructions consult the back pages of our User Manual.