Baking Ammonia: The Other White Leavening Agent

摘要

According to the ubiquitous "Food Lover's Companion" by Sharon T. Herbst, baking ammonia is a chemical leavening agent that is considered "the precursor of today's baking powder and baking soda." It has also been known as ammonia bicarbonate, ammoniacarbonate, ammonium bicarbonate and hartshorn in various circles and at different points in time. Traditionally, baking ammonia was a by-product of hartshorn, which used to be obtained by grating or calcining the horns of harts, which in modern times weknow as male deer.