CRITERION™ D/E (Dey-Engley) Neutralizing Broth by Hardy Diagnostics is designed for the neutralization and recovery of microorganisms that have been exposed to antiseptics, disinfectants, or sanitizing agents. This medium is ideal for environmental monitoring, surface sampling, and disinfectant efficacy studies across a wide range of laboratory and manufacturing environments.

D/E Neutralizing Broth effectively neutralizes common active ingredients such as quaternary ammonium compounds, phenolics, iodine, chlorine, formaldehyde, and glutaraldehyde, allowing for accurate assessment of surviving organisms after disinfection procedures. Its balanced formulation supports microbial recovery and growth, ensuring confidence in contamination control and validation testing.

As part of the CRITERION™ Dehydrated Culture Media product line, this formulation offers high solubility, consistent performance, and superior convenience in Hardy Diagnostics’ wide-mouth, easy-grip packaging — ensuring reproducible results for quality-conscious laboratories.

Features and Benefits:
• Designed to neutralize a broad spectrum of disinfectant chemicals
• Supports recovery and growth of microorganisms after sanitation procedures
• Ideal for environmental monitoring and cleaning validation in controlled facilities
• Highly soluble formula ensures uniform media preparation and consistent results
• Wide-mouth 500g bottle with handgrip for easy dispensing and reduced dust formation
• Also available in pre-measured 2L Mylar® bags and bulk 2kg or 10kg containers
• Manufactured under ISO 13485 and cGMP-certified conditions for reliability and safety