5 Best Buttermilk Substitutes for Yeast Bread

This substitute works because the acid (lemon juice or vinegar) curdles the milk slightly, lowering its pH to approximate that of buttermilk. The acidity helps activate the yeast and tenderizes gluten, which is crucial for yeast bread structure and crumb.

For best results, use whole or 2% milk and allow the acid to react fully before adding to the dough. Avoid using skim milk as it may reduce tenderness. Ensure the mixture is fresh and not overly curdled.

Compared to original buttermilk, this substitute yields very similar dough elasticity and rise, producing a bread with comparable crumb softness and flavor.

Kefir is a fermented milk product with natural acidity and live cultures, which help mimic buttermilk’s role in yeast bread by tenderizing gluten and supporting yeast activity. Its thinner consistency compared to yogurt makes it suitable for dough hydration.

Use plain, unsweetened kefir to avoid off-flavors. Because kefir contains active cultures, it can slightly enhance fermentation but monitor dough consistency as it may vary.

The resulting bread will have a mild tang and good crumb structure, closely resembling that made with buttermilk.

Cream of tartar is an acid that, when combined with milk, lowers the pH similarly to buttermilk. This helps maintain proper gluten development and yeast activity in the dough.

Dissolve cream of tartar fully in milk before mixing into the dough to avoid graininess. This substitute is shelf-stable and convenient.

The bread will have a slightly less tangy flavor than with buttermilk but maintains good rise and crumb texture.

Soy milk curdled with acid mimics the acidity and moisture of buttermilk, which is important for gluten network formation and yeast fermentation in yeast bread. The acidity helps tenderize the dough and improve rise.

Use unsweetened soy milk to avoid unwanted flavors. Let the mixture sit to curdle before adding to the dough. Monitor dough hydration as soy milk may have slightly different water content.

The bread may have a subtle difference in flavor and slightly different crumb softness but will still rise well and have good texture.

Coconut milk combined with acid provides the necessary acidity for yeast activation and gluten development, but its higher fat content can tenderize the dough more than buttermilk, potentially resulting in a softer, denser crumb.

Use full-fat canned coconut milk for best moisture and richness. Let the mixture curdle before use. Be aware that coconut flavor may subtly influence the bread’s taste.

The final bread will be moist with a tender crumb but may be less airy and have a slight coconut aroma compared to traditional buttermilk bread.