A top loading electrically sterilizer under saturated steam of adjustable pressure of 10 to 20 psi. Double walled construction with boiler and steam jacket made of thick stainless steel and gap is filled with high grade glass wool to bring the temperature loss to minimal level. The outer chamber is made out of thick stainless steel. The lid is made of thick stainless steel plate (joint less) and can be sealed by a joint less neoprene rubber gasket by wing nuts (brass nut) dial pressure gauge, air/steam release cock, water level indicator, spring loaded safety valve adjustable to any required point from 10 to 20 psi with accuracy +3 psi. A stain cock has also been provided. A double safety valve has also been provided along with inlet. Supplied complete in stainless steel and stainless steel dressing bins and low water cut off device.