⭐ White Vinegar (Best Dairy-Free Option)
1:1 (replace 1 tablespoon Apple Cider Vinegar with 1 tablespoon White Vinegar)White vinegar has a similar acetic acid concentration as apple cider vinegar, which is essential for activating baking soda in zucchini bread. This activation produces carbon dioxide, helping the bread rise and develop a tender crumb.
When substituting, use the same volume to maintain the acid-base balance. White vinegar is neutral in flavor compared to apple cider vinegar, so it won't interfere with the subtle sweetness and spices in the bread.
The final bread will have a comparable texture and rise, with negligible difference in taste, making it the most reliable substitute in this recipe.