Apple cider vinegar vs Lemon juice
For the chemistry of baking they are interchangeable: both are acids that react with baking soda for lift and sour milk into a buttermilk stand-in, swapping about 1:1. Lemon adds a little citrus brightness; cider vinegar is more neutral once baked and barely shows in the final crumb. Use whichever you have when the job is leavening or souring; pick lemon when you actually want the flavor.
At a glance
| Ingredient | Grams per cup | Type | Key trait |
|---|---|---|---|
| Apple cider vinegar | 239 g | Liquids | Nearly identical density to white vinegar; mildly fruity in cooking and baking. |
| Lemon juice | 244 g | Liquids | Lemon juice is slightly denser than water, so a cup weighs a little more than 240 grams. |
How to swap apple cider vinegar and lemon juice
- 1 cup ACV = 1 cup lemon juice (Food52)Works in dressings, marinades, and baking; use slightly less in baked goods to avoid extra liquid.
- 1 tbsp lemon juice = ½ tbsp white wine vinegar or apple cider vinegar + ½ tbsp water (Healthline)Use when acidity is the main role (e.g. activating baking soda, pickling). Skip in recipes that depend on citrus flavor.
Full conversions: Apple cider vinegar converter · Lemon juice converter. More swaps: Apple cider vinegar substitutes · Lemon juice substitutes.
More comparisons
* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.