In the last few decades, it was realized that the production of a stable refined palm oil of good color is also dependent on characteristics other than FFA content, especially on the degrees of oxidation and contamination with catalytic traces of metals. Surveys carried out on Malaysian palm oil showed that the peroxide value (PV) of standard palm oil exported from Malaysian fell from 3.9 milligrams per kilogram oxygen to 2.3 milligrams per kilogram oxygen between 1974 and 1981 (Jacobsberg, 1974; Wong, 1981).