teasp bicarbonate of soda
Sodium bicarbonate is primarily a leavening agent with minimal nutritional value when used in typical baking quantities; however, it contributes sodium to recipes and is often used in such small amounts that nutritional impact is negligible.
About
Sodium bicarbonate (NaHCO₃), commonly known as baking soda or bicarbonate of soda, is a white crystalline powder derived from the mineral natron or produced synthetically through the Solvay process. It is an alkaline compound that reacts with acids to produce carbon dioxide gas, water, and sodium salt. In its pure form, sodium bicarbonate has a slightly salty taste and is odorless. It is distinct from baking powder, which contains sodium bicarbonate combined with acid(s) and starch.
The ingredient is commonly available as fine white powder and dissolves readily in water. When combined with acidic ingredients such as buttermilk, yogurt, lemon juice, vinegar, or cocoa powder, it undergoes an immediate chemical reaction that produces leavening gas, making it essential in baking applications requiring quick rise.
Culinary Uses
Sodium bicarbonate is primarily used as a leavening agent in baking, where it reacts with acids to create lift in cakes, cookies, quick breads, and pancakes. It is essential in recipes containing acidic ingredients and produces an immediate rise, requiring prompt baking after mixing. Beyond baking, bicarbonate of soda is used to neutralize acidic flavors in sauces, to tenderize meat when used in marinades, and to blanch vegetables while preserving color. It also serves as a cleaning and deodorizing agent in kitchens, though this is secondary to its culinary applications.
In global cuisines, it appears in American quick breads, Irish soda bread, Chinese stir-fries (to tenderize proteins), and Indian batters. The ingredient requires careful measurement, as excess amounts can impart a bitter, soapy taste.