Proziaki be produced with the addition of sugar. In numerous Subcarpathian villages the proziaki bakes are diversified by adding buttermilk, cottage cheese or more butter. Traditionally, prozianki are served with fresh butter, cottage cheese or marmalade. The consummation of proziaki is frequently followed by sweet milk. Proziaki Proziaki, soda bread - flour-based rolls with added sodium bicarbonate ("proza") originating from Subcarpathia in south-eastern Poland, also common in other parts of the country. Proziaki are produced by the use of wheat flour or wheat-secale flour, eggs, sour smietana (sour cream), water, salt and a maximum of one table spoon of sodium bicarbonate,
Sodium bicarbonate fire extinguishers. In 1791, French chemist Nicolas Leblanc produced sodium carbonate, also known as soda ash. In 1846, two New York bakers, John Dwight and Austin Church, established the first factory in the United States to produce baking soda from sodium carbonate and carbon dioxide. "Saleratus", potassium or sodium bicarbonate, is mentioned in the novel "Captains Courageous" by Rudyard Kipling as being used extensively in the 1800s in commercial fishing to prevent freshly caught fish from spoiling. NaHCO is mainly prepared by the Solvay process, which is the reaction of sodium chloride, ammonia, and carbon dioxide in water. Calcium carbonate