PROBLEM TO BE SOLVED: To produce a natural emulsifier without using an expensive subcritical treatment apparatus which requires high temperature and high pressure treatment. A method for manufacturing a natural emulsifier, as shown in FIG. 1, the natural raw materials T 1 was crushed natural material and the grinding step S1 for generating a pulverized pulverized product with a jet mill, heated and the ground product with water vapor A heating and stirring step S2 that stirs and produces a heated / stirred product, and a centrifugation step S3 that separates the heated / stirred product into a liquid L containing a subcritical substitute substance and a powder P by a centrifuge are provided. It is characterized by that. [Selection diagram] Fig. 1【課題】高温・高圧の処理を必要とする高額の亜臨界処理装置を使わずに、天然乳化剤を製造すること。【解決手段】天然乳化剤の製造方法は、図1に示す通り、天然材を破砕した天然原料T1をジェットミルで粉砕し粉砕物を生成する粉砕工程S1と、該粉砕物を水蒸気で加熱及び撹拌し、加熱・撹拌物を生成する加熱撹拌工程S2と、該加熱・撹拌物を遠心分離機により、亜臨界代替物質を含む液体Lと粉体Pに分離する遠心分離工程S3と、を備えたことを特徴とする。【選択図】 図1