Chapter 10 is dedicated to the different plastics. First, the chapter discusses the types of plastics and their properties. The interested reader is also given advice on what to look out for when purchasing plastic parts to ensure that they will give good washing results afterwards. And if the plastic parts do not come out of the dishwasher optimally cleaned, various possibilities are shown for the best basic cleaning of the plastics used. The chapter concludes with a discussion of the material resistance of plastics in the dishwashing process and how their service life can be extended.