A cleaning apparatus includes a heating device, a freezing device, and a conveying belt. The heating device includes a hot water source and a hot water container. The hot water container includes an exit shutter and defines a water inlet and a water outlet. The hot water source being communicated to the hot water container via the water inlet. The freezing device includes an aerosol spray system and a freezing container. The spray system includes a spray head. The freezing container includes an entrance shutter. The spray head is received in the freezing container. The conveying belt extends into the hot water container via the exit shutter and into the freezing container via the entrance shutter and thereby bridges the hot water container and the freezing container.