Despite its many advantages, blood agar also has some limitations:
Non-Selective Medium: Blood agar is a non-selective medium, meaning it supports the growth of many different types of bacteria, which can complicate the identification of specific pathogens. Limited Shelf Life: Prepared blood agar plates have a limited shelf life and must be used relatively quickly to ensure optimal performance. Cost: The addition of blood makes this medium more expensive compared to other nutrient media.