An insulated disposable surgical fluid container. The container is doubled walled and includes an outer surface including an insulating material for reducing heat transfer from the outer surface to a surrounding area an insulating component separating the outer surface from an inner surface for reducing heat transfer from the inner surface to the outer surface and an inner surface comprising a fluid container portion for holding a fluid. The inner surface includes a thermally conductive material for spreading heat energy evenly over the inner surface and maintaining an isothermal temperature distribution on the inner surface, thereby maintaining an isothermal temperature of any fluid included in the fluid container portion. The fluid container portion includes a keel shaped bottom portion for accurately dispending and pouring irrigating fluids from the fluid container portion into a wound during a surgery. The container helps prevent perioperative hypothermia from irrigations fluids used during a surgery.