If the inside surfaces of your sterilizers are covered with rust, greenish or black residue, that build-up can reduce sterilizer effectiveness and efficiency. After several years of use, most sterilizers experience build-up of chamber walls and door linings. Processing sterile goods under these conditions can be at the least distasteful, but more importantly, can be less efficient than processing in a clean chamber. The heat radiation processes needs clean, uniform surfaces to insure a fully effective drying cycle. Having your sterilizer cleaned will keep it working efficiently and effectively.