White Wine Vinegar (Best Option)
1 tablespoon per 1 tablespoon of lemon juiceWhite wine vinegar contains acetic acid, which mimics the acidity of lemon juice, helping to brighten and balance the flavors in tomato sauce. Its mild fruity undertones complement the natural sweetness of tomatoes without overwhelming the sauce.
When using white wine vinegar, add it gradually and taste as you go to avoid excessive sharpness. It’s best added towards the end of cooking to preserve its delicate flavor.
Compared to lemon juice, white wine vinegar provides a similar acidic punch but with a slightly different flavor profile that generally enhances the sauce’s complexity without changing its texture.