To effectively replace yeast in our baking mixes, simply substitute the yeast with equal parts of baking soda and lemon juice. For instance, if the recipe requires one teaspoon of yeast, use half a teaspoon of baking soda combined with half a teaspoon of lemon juice. This combination will help create the necessary rise and provide a light, fluffy texture to your baked goods, ensuring that the final product remains delicious and satisfying.