Abstract: A process of producing glyceride oil having a very low content of non-hydratable phosphatides from fatty seeds and fruits is disclosed. In the process, the fatty material is instantaneously and for a very short time exposed to a high temperature at a controlled water content. The glyceride oil extracted from the thermally treated material has after water-degumming the same low contents of phosphorus, iron, calcium and magnesium as can be achieved by treatment with strong acid and alkali (superdegumming) of a conventionally produced glyceride oil.