Sodium bicarbonate breads, soda bread, and other baked and fried foods. Acidic compounds that induce this reaction include phosphates, cream of tartar, lemon juice, yogurt, buttermilk, cocoa, and vinegar. Baking soda may be used together with sourdough, which is acidic, making a lighter product with a less acidic taste. Heat can also by itself cause sodium bicarbonate to act as a raising agent in baking because of thermal decomposition, releasing carbon dioxide. When used this way on its own, without the presence of an acidic component (whether in the batter or by the use of a baking powder containing acid), only half
Crempog The mixture is meant to stand for a few hours. A second mixture is made using sugar, bicarbonate of soda, vinegar and beaten eggs. The mixtures are then combined to make a smooth, dense batter. The batter is poured onto a hot bakestone or griddle, over a moderate heat. The "crempog" is cooked until golden on both sides and served in a stack with butter spread on each pancake. In Anglesey and Caernarfonshire "crempogau" were prepared as "crempog furum", a pancake made with yeast, or "crempug wen" where the normally coarse flour was replaced with refined flour. These pancakes were