Developed countries do not use infrared cookers, and there are many potential safety hazards, the most prominent of which is tempering and deflagration, which is an insurmountable technical problem, not just a material problem. Besides, the stove is dirty and difficult to clean. Including the energy gathering furnace made of metal mesh, have not fundamentally broken through this problem. At present, the most mature atmospheric cooker in the world, and the atmospheric cookers of domestic big brands have completely reached the international leading level. I am a professional engineer myself, so I can't ask for details.