More nutritional more tasty Energy efficient design Keep warm function Cool touch body Temperature protection device Pressure limit device Lid on off safety It is multifunctional and can be used for stewing, slow cooking, warm-keeping, high pressure or low pressure boiling or frying Ultra-thick cast aluminum heat board , high thermal efficiency and energy-saving Multiple safety protections More nutritional more tasty Energy efficient design Keep warm function Cool touch body Temperature protection device Pressure limit device Lid on off safety It is multifunctional and can be used for stewing, slow cooking, warm-keeping, high pressure or low pressure boiling or frying Ultra-thick cast aluminum heat board , high thermal efficiency and energy-saving Multiple safety protections