Lemon Juice (Best Option)
1 tablespoon lemon juice per 1 tablespoon white vinegarLemon juice contains citric acid, which reacts with baking soda to produce carbon dioxide, helping the scones rise and develop a tender crumb. Its acidity level is close to that of white vinegar, making it an effective substitute.
When using lemon juice, ensure it is freshly squeezed or bottled pure lemon juice without added sugars or preservatives. The slight citrus flavor can enhance the scone's aroma but should be balanced with the other ingredients.
Compared to white vinegar, lemon juice may impart a subtle citrus brightness, which can be desirable in many scone recipes, especially those with fruit or herb additions. The texture and rise will remain consistent.