Soda bread Soda bread Soda bread is a variety of quick bread traditionally made in a variety of cuisines in which sodium bicarbonate (otherwise known as "baking soda", or in Ireland, "bread soda") is used as a leavening agent instead of the traditional yeast. The ingredients of traditional soda bread are flour, baking soda, salt, and buttermilk. The buttermilk in the dough contains lactic acid, which reacts with the baking soda to form tiny bubbles of carbon dioxide. Other ingredients can be added such as butter, egg, raisins, or nuts. An advantage of quick breads is their ability to be prepared quickly
Finnish bread traditional in Finland, and it makes the best of the humidity preserving qualities of traditional rye bread by serving each piece of bread as a pre-cut pair of two halves, which protect each other but can still be easily separated. The brand is not without competitors. Two of them are Fazer's "Ruispuikulat" (a newer competitor), which are oblong in shape instead, and Oululainen's "Reissumies" (preceding Vaasa's formulation by about a decade), which are round. Both competitors are distinctly more traditional in formulation than Ruispala, mainly changing the size and shape of the traditional rye bread. As rye bread is the