CRITERION™ Tryptic Soy Broth (TSB) by Hardy Diagnostics is a versatile, general-purpose broth medium widely used for the isolation, cultivation, and maintenance of a broad spectrum of microorganisms, including aerobic and facultative anaerobic bacteria.

TSB is one of the most commonly used enrichment media in microbiology for sterility testing, microbial enumeration, antibiotic susceptibility testing, and culture maintenance. Its nutrient-rich formulation supports robust microbial recovery across clinical, food, pharmaceutical, and environmental applications.

As part of the CRITERION™ Dehydrated Culture Media line, Hardy Diagnostics ensures superior performance and convenience through high solubility, consistent formulation, and ergonomic packaging — making it a reliable choice for high-throughput laboratories and manufacturing facilities.

Features and Benefits:
• Broad-range medium for cultivating bacteria, yeasts, and molds
• Ideal for sterility testing and microbial enrichment applications
• High solubility formula ensures rapid and uniform media preparation
• Stackable, easy-grip 2kg bucket with screw lid for secure and efficient storage
• Available in multiple container sizes — 500g, 2kg, 10kg, and pre-measured 2L Mylar® bags
• Reliable Hardy Diagnostics quality backed by ISO 13485 and cGMP standards
• Detailed technical sheets included for proper media preparation and validation