The pH of lemon juice is typically between 2.0 and 3.0, making it quite acidic.
The acidity of lemon juice is primarily due to the presence of citric acid, which gives lemons their characteristic sour taste.
The pH scale measures the acidity or alkalinity of a substance. A pH of 7 is considered neutral, while a pH lower than 7 is acidic and a pH higher than 7 is alkaline.
The acidity of lemon juice is what makes it useful for various purposes, including:
* **Flavoring food and drinks:** Lemon juice adds a tangy flavor to dishes and beverages.
* **Cleaning and disinfecting:** Lemon juice's acidity can help to clean and disinfect surfaces.
* **Preserving food:** The acidic nature of lemon juice helps to preserve food by inhibiting bacterial growth.
While lemon juice is acidic, it is generally safe to consume in moderation. However, excessive consumption can lead to digestive issues, such as heartburn or stomach upset.