Substitute for Baking Soda
Sodium bicarbonate, a leavening agent that requires an acid to activate. Used in baking and cleaning.
The Best Substitute
The Professor's top pick for replacing baking soda is Baking Powder at a ratio of 3 teaspoons baking powder = 1 teaspoon baking soda (but reduce other acids in the recipe). This works well for cakes, muffins, quick breads. Scroll down for complete details on every option, including what to use each one for and what to avoid.
Best Substitutes
Baking Powder
Flavor impact: Baking powder contains its own acid, so you may need to reduce other acidic ingredients (buttermilk, lemon juice) to avoid an overly tangy result. The rise will be slightly different.
Dairy-free
This swap works but it is not clean. Baking soda is stronger and reacts differently than baking powder. If possible, just buy baking soda; it costs less than a dollar and lasts forever.
Frequently Asked Questions
Baking soda is pure sodium bicarbonate and needs an acid (buttermilk, lemon juice, vinegar) to activate. Baking powder already contains an acid. Baking soda is about 3-4 times stronger.
The Bottom Line
If you are out of baking soda, the best all-around substitute is baking powder. Pay attention to the ratio, since substitutes rarely work at exactly 1:1. Consider what role baking soda plays in your recipe; whether it provides flavor, texture, acidity, or structure; and choose the substitute that best fills that specific role. When in doubt, start with less and adjust to taste.
Source: Culinary reference | Last verified: March 19, 2026 | Our methodology