Fats, oils and resins, e.g. from seeds of the coconut palm, sunflower seeds, linseed oil, soybean oil, the crushed seeds of oil palms, the seeds of Brassica napus (turnip rape) or the subtropical ricinus shrubs (ricinus communis), are gently saponified with caustic potash solution, soda lye or ammonia solution in dedicated facilities. Part of the raw materials come from controlled biological cultivation.