⭐ Lemon Juice (Best Nut-Free Option)
1 tablespoon lemon juice per 1 tablespoon apple cider vinegarLemon juice provides a similar acidic pH that helps strengthen gluten and balances the bread’s flavor profile, which is crucial in sourdough bread to maintain the characteristic tang. The acidity also supports yeast and bacterial activity during fermentation.
When substituting, use fresh lemon juice for best results and avoid adding too much to prevent excessive citrus notes. Monitor dough hydration as lemon juice is slightly more liquid than vinegar.
The final bread will have a slightly fresher, citrus-tinged aroma but will retain the essential sourdough tang and texture, making it the closest match to apple cider vinegar in this context.