Multi stage safe dry condensing

A method and system for deodorizing an edible oil or fat. The method includes stripping substances from the oil or fat with a stripping medium at high temperature at a pressure of less than 5 mbar, and reducing volume and increasing pressure of the stripping medium in a multi-step process. In a first step the volume of the stripping medium is reduced by cooling it using a first heat transfer fluid loop at a first temperature, and the pressure is increased to a first intermediate pressure. In a second step the volume is reduced by cooling using a second heat transfer fluid loop at a second temperature, and it he pressure is increased to a second intermediate pressure. In a third step the volume is reduced by cooling using a third heat transfer fluid loop at a third temperature, and the pressure is increased to atmospheric pressure.