What Are The Three Leavening Agents Used In Baking?

What Are The Three Leavening Agents Used In Baking? How Leavening Agents Work. Yeast: Biological Leavening Agent. Baking Soda and Baking Powder: Chemical Leavening Agents. Steam: Vaporous Leavening Agent. What are the leavening agents used in baking? leavening agent, substance causing expansion of doughs and batters by the release of gases within such mixtures, producing