Lift and structure
Baking soda produces gas early in mixing and baking. This helps batters expand and creates a lighter crumb when acid is present.
What Does Baking Soda Do in Baking?
Baking soda controls more than rise. It also affects browning, spread, texture, and flavor balance. Used well, it improves crumb and color. Used poorly, it can create off-flavors or weak structure.
Browning and spread
Because baking soda is alkaline, it can speed browning and increase spread in cookies. That is why small dosage changes can noticeably affect texture and appearance.
Flavor balance
Correct amounts neutralize acid and keep flavor balanced. Too much can leave metallic or soapy notes, especially in delicate bakes.
FAQ
Why do cookies spread more with baking soda?
Baking soda can increase spread and browning by changing pH and weakening structure earlier in the bake.
Can I skip baking soda in a recipe?
Skipping it usually reduces rise and changes texture and color, especially in recipes designed around acid + soda chemistry.
Does baking soda affect taste?
Yes. In correct amounts it balances acidity; too much can taste soapy or bitter.