TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The first temperature range is 0-50 degrees C, preferably 15-35 degrees C. The second temperature range is 170-220 degrees C, preferably 195-205 degrees C. The base comprises sodium hydroxide. The acid is preferably phosphoric acid and/or citric acid. The mechanical separation process includes centrifugation, filtration and/or decantation. Preferred Method: The stripping is carried out, preferably with water vapor as a stripping agent. The addition of phosphoric acid and water in the degumming step is such that, 85% phosphoric acid (0.2-0.3 wt.%, based on the starting weight of the mixture) is stirred in the crude oil. The degumming step, in addition to phosphoric acid, comprises stirring crystalline citric acid, tocopherol and/or ascorbic acid (0.03-0.05 wt.%, based on the starting weight of the mixture), and water (0.05-0.1 wt.%) in the crude oil. The degumming step is carried out with water and separation of gums by the mechanical separation process, before degumming with the acid. The sodium hydroxide is added in the form of 12% sodium hydroxide solution in the partial neutralization step, the phosphoric acid ( not greater than 70 mol-%) added in the degumming step is neutralized to sodium phosphate, and water (8-10 wt.%, based on the starting weight of the mixture) is stirred in the mixture. The crude oil adsorption materials are added for the separation of gums and soaps, and to improve the efficiency of the mechanical separation process and the filtration process. The stripping step is carried out continuously as a continuous process. EXAMPLE - Jatropha crude oil (18 kg) was stirred at 25 degrees C with 85% phosphoric acid (307 g) and a citric acid solution produced by dissolving crystalline citric acid (47.2 g) in water (100 g) for 30 minutes in a container with an axial promoting pitched blade impeller with 60 revolutions per minute. Then sodium hydroxide (220 g) dissolved in water (1613 kg), and cellulose powder type CelluFluxx F15 (RTM: Extra short cellulose fiber) (600 g) stirred in water (10 kg) were stirred in the oil. Then the sludge (32.9 kg) was separated from the oil by centrifugation to obtain degummed oil (98.3 kg).