Baking Soda and Lemon Juice (Best Option)
1/4 tsp baking soda + 1/2 tsp lemon juice per 1 tsp yeastBaking soda reacts immediately with acidic lemon juice to produce carbon dioxide, which can mimic the slight rising effect yeast would have in doughs or batters. In stir-fry, this combination helps balance flavors and can slightly tenderize ingredients without fermentation.
To use effectively, add baking soda directly to the marinade or sauce and lemon juice shortly after to trigger the reaction. Avoid adding too much to prevent a soapy or metallic taste.
Compared to yeast, this substitute does not contribute fermentation flavors but maintains the intended texture and acidity balance, making it ideal for stir-fry where yeast's leavening is not essential.