White Vinegar (Best Option)
1 tablespoon per 1 tablespoon of lemon juiceWhite vinegar is a clear, mild acid that effectively reacts with baking soda to produce carbon dioxide, which leavens the cake. Its acidity level closely matches lemon juice, ensuring the chemical reactions necessary for the cake's rise and tender crumb remain intact.
When using white vinegar, measure precisely to avoid an overly sharp taste. It is best added directly to the wet ingredients to ensure even distribution. Avoid using more than the recommended amount to prevent flavor imbalance.
The final cake will have a similar texture and rise as with lemon juice, and the red color will remain bright and vibrant. The flavor impact is minimal, making it the most reliable substitute.