When it comes to acidity, both lemon and apple cider vinegar are known for their tart and zesty flavors. But which one is more acidic? Let’s take a closer look at the pH levels of these two popular ingredients.
The pH Scale and Acidity
In order to understand the level of acidity, we must first familiarize ourselves with the pH scale. This scale measures the concentration of hydrogen ions (H+) in a substance, indicating its level of acidity or alkalinity. The pH scale ranges from 0 to 14, with 7 being considered neutral. Anything below 7 is acidic, while anything above 7 is alkaline or basic.
Lemon Juice: A Tangy Citrus Delight
Lemon juice is renowned for its refreshing tangy taste and vibrant aroma, making it a popular choice in cooking, baking, and beverages. It is known for its high acidic content, which gives it its characteristic tartness. On the pH scale, lemon juice typically falls around 2, making it quite acidic.
Apple Cider Vinegar: A Versatile Vinegar
Apple cider vinegar, derived from fermented apples, is another ingredient known for its acidity and versatility. It has been used for centuries as a natural remedy, a cleaning agent, and even a salad dressing base. Similar to lemon juice, apple cider vinegar also possesses a low pH, typically ranging from 2 to 3.
Comparing the Acidic Levels
When we compare the acidity of lemon juice and apple cider vinegar, we find that lemon juice tends to be slightly more acidic. Lemon juice’s pH usually hovers around 2, while apple cider vinegar falls within the range of 2 to 3. This means that on the pH scale, lemon juice is a touch more acidic than apple cider vinegar.
Factors Influencing Acidity
While both lemon juice and apple cider vinegar exhibit high levels of acidity, it is important to note that acidity can vary depending on factors such as the source of the fruit or vinegar, ripeness, processing methods, and storage conditions. These variables can slightly impact the pH levels, leading to subtle differences in acidity.
Acidity in Culinary Use
The acidity of lemon juice and apple cider vinegar plays an essential role in various culinary applications. Lemon juice’s higher acidity lends itself well to brightening flavors in dishes, from adding tanginess to salad dressings to enhancing the taste of seafood. On the other hand, apple cider vinegar’s milder acidity makes it a popular choice for pickling, marinades, and homemade condiments.
Consideration for Sensitive Individuals
While lemon juice and apple cider vinegar offer distinct flavors and health benefits, some individuals with sensitive stomachs or certain medical conditions may need to moderate their intake of highly acidic foods. It is always advisable to consult with a healthcare professional if you have concerns about your diet and acidity levels.
Dilution and Balance
If you find the acidity of lemon juice or apple cider vinegar too strong for your taste, you can dilute them with water or incorporate them into recipes alongside ingredients that provide balance, such as a sweetener or a creamy element. Experimenting with different ratios can help you find the optimal acidity level for your desired taste.

The Verdict
In summary, both lemon juice and apple cider vinegar are highly acidic substances. However, lemon juice is slightly more acidic than apple cider vinegar, with its pH typically falling around 2. While acidity levels may vary based on factors such as sourcing and processing, understanding their acidity allows us to harness the flavors and benefits they bring to our meals and health.