The bottom of the vacuum cooker is equipped with a unique energy gathering ring, which can quickly absorb heat and gather energy when heating. After leaving the fire source, the temperature of the energy gathering ring can reach 500~600 degrees Celsius, and it can slowly and evenly dissipate heat, so that the pot can keep boiling for a certain period of time, and the effect of continuing cooking on the fire can be achieved. The shell adopts double-layer vacuum stainless steel heat insulation technology, which keeps the temperature in the pot constant for a long time, keeps boiling within 1 hour, reaches 85℃ in 4 hours, and reaches 70℃ in 12 hours, and can keep warm and keep cold for 24 hours.