R2A agar plates, also called Reasoner’s 2A agar plates, are low-nutrient culture media designed for the isolation and enumeration of heterotrophic bacteria, particularly those recovered from potable water systems and environmental samples. Unlike nutrient-rich media such as LB, R2A agar encourages the recovery of slower-growing microorganisms by providing a less competitive growth environment. R2A agar plates are widely used in drinking water analysis, purified water monitoring, environmental microbiology, pharmaceutical quality control, and microbiology research.

Our R2A agar plates are supplied as sterile, ready-to-use, pre-poured plates, eliminating the need for in-house media preparation and reducing variability between experiments. Each formulation is manufactured to precise specifications to ensure consistent nutrient composition and reliable microbial growth.

We produce our R2A agar plates using rigorous quality control standards to ensure sterility, performance, and lot-to-lot consistency. Teknova also supports custom agar formulations and plate formats to meet specialized environmental monitoring, research, and quality assurance requirements.