What Is a Substitute for Lemon Juice?

What's the best lemon juice substitute?

Lime juice is the closest 1-to-1 lemon juice substitute. Both are bright, acidic citrus juices with similar pH (around 2.0-2.3). Use 1 tablespoon of lime juice for 1 tablespoon of lemon juice. The flavor shifts toward lime (slightly more floral and earthy), but the acidity is identical.

For most recipes, this swap is barely noticeable. For lemon-forward applications (lemon meringue pie, lemon bars), the lime flavor comes through and changes the dish; this can be a feature rather than a bug if you like both flavors.

Can you use vinegar instead of lemon juice?

For cooked recipes where lemon juice provides acidity (marinades, sauces, dressings), white wine vinegar or white vinegar substitutes well. Use 1/2 the amount because vinegar is sharper than lemon juice: 1/2 tablespoon of vinegar replaces 1 tablespoon of lemon juice.

For raw applications where lemon's specific flavor matters (a finishing squeeze over fish, lemon zest in dressings), vinegar doesn't substitute well. The flavor profile is too different. For these, lime juice or apple cider vinegar (slightly milder and fruitier) are better substitutes.

What about white wine or other alcohol-based substitutes?

For cooked recipes, white wine works as a 1-to-1 substitute for lemon juice. The wine adds acidity plus a small amount of complexity. Use 1 tablespoon of dry white wine for 1 tablespoon of lemon juice in pan sauces, stews, and braises.

For lemon juice in baking, white wine isn't a good substitute because the alcohol changes the chemistry. For these, citric acid powder is the best dry substitute: use 1/4 teaspoon of citric acid powder per 1 tablespoon of lemon juice, mixed into the dry ingredients. The citric acid provides acidity without adding liquid.

When does the lemon juice substitute fail?

For lemon meringue pie, lemon curd, and other recipes where lemon flavor is the main ingredient, substitutes don't work well. Lime juice produces a lime version of the recipe; vinegar lacks the fruit flavor entirely. For these, real lemon juice (or lemon extract plus another acid for the curd's structure) is necessary.

For preserved lemons in Middle Eastern and North African cooking, the substitute is completely different (use 1 part regular lemon juice mixed with 1 part olive brine, or skip them entirely). For baking applications where lemon juice activates baking soda (like in lemon poppy seed muffins), citric acid powder works as a dry substitute, or lime juice swaps directly.