Leavening (baking soda and/or calcium phosphate)

“Leavening (baking soda and/or calcium phosphate)” refers to a chemical leavening system comprising a base (sodium bicarbonate, NaHCO₃) and a food-grade acid (here, acidic calcium phosphate). Upon hydration and/or heating, the acid–base reaction releases carbon dioxide (CO₂), forming gas cells that expand the batter/dough and deliver rise and...