White Vinegar (Best Option)
1 teaspoon per 1 tablespoon of lemon juiceWhite vinegar is primarily acetic acid diluted in water, which provides the acidity needed to strengthen gluten and activate yeast in bread dough. This acidity helps improve dough rise and texture by creating an optimal environment for yeast fermentation.
When substituting, use slightly less vinegar than lemon juice because vinegar is more acidic. Monitor dough hydration and adjust water if necessary to maintain proper consistency.
The final bread will have a slightly different flavor profile, lacking the citrus notes of lemon juice, but the texture and rise will remain comparable and satisfactory.