DESCRIPTION. Plate Count Agar is a medium used for the determination of the total microbial content from food and animal feed, water and other materials. El Agar de Recuento en Placa está ajustado en su formulación a los prescritos por los “Standard Methods for the Examination of. Dairy Products” y TryptonePHLS Standard Methods for the Microbiological Examination of Food and Dairy Samples (1999) Aerobic plate count at 30°C F10 and F11. 5. International Easy DryTM Plate Count + TTC is a medium used for the determination of the total microbial content from food and animal feed, water and other materials.