At present, the internal structure of all household electric pressure cookers in the world is the same. In fact, electric pressure cooker is a combination of rice cooker and flexible pressure cooker in principle. As for brands, I think they are all the same, except for better publicity, which is similar. What kind of healthy pressure cookers and all-intelligent pressure cookers are being promoted. I think buying a pressure cooker mainly depends on appearance and workmanship. Generally, the workmanship, appearance and gloss of good companies are well handled. I insist on buying only the most suitable ones, not the most expensive ones.