Residual material that is released during the factory degumming of crude, non-degumming vegetable oil - derived from seeds of rapeseed, rapeseed, soybean or sunflower - by means of physical separation and whereby the hydrophilic part of the oil dissolves in water or a weakly acidic solution and which consists of phospholipids, water-soluble fats, oil and possibly acidic residues in water, which is called aqueous lecithin-oil mixture.