Used in microbiological testing to detect and differentiate coliform bacteria in water, food, and environmental samples. The medium contains chromogenic substrates that produce visible color changes when metabolized by coliforms, allowing for easy identification. It enables rapid screening and enumeration of coliforms, including E. coli, by generating distinct colony colors. Commonly used in quality control for drinking water, bottled water, and pharmaceutical products to ensure safety and regulatory compliance. Offers a simpler, faster alternative to traditional methods like MPN, with results typically available within 24 hours.