Encapsulated acid is a form of acid that is coated or enclosed in a protective outer layer or shell. This can be done for a variety of reasons, including to improve the stability, handling, and safety of the acid, to control the release of the acid over time, or to mask its taste or smell.

Encapsulated acids are often used in food, pharmaceutical, and other consumer products to provide a variety of functional benefits, such as to adjust pH, improve flavor, or act as a preservative.