While nanotechnology offers numerous benefits, there are potential risks and challenges: - Health Concerns: The long-term effects of exposure to certain nanomaterials are still under research. For example, inhalation of nanoparticles could pose health risks. - Cost: The integration of advanced nanomaterials can make ovens more expensive, which could be a barrier for widespread adoption. - Manufacturing Complexity: Producing nanomaterials and integrating them into ovens require specialized processes and equipment, which can complicate manufacturing.