ISO 18593 is a critical international standard for food safety, focusing on how to detect invisible microbial threats on the surfaces that touch our food. Rather than testing the food itself, this "horizontal method" allows safety teams to hunt for pathogens like Listeria or Salmonella where they often hide—on prep tables, equipment, and even the hands of operators. Why It Matters: The "Invisible Warning System"
The standard describes "horizontal methods," meaning they are applicable across the entire food chain rather than for specific food types. It targets culturable microorganisms, including: ISO - International Organization for Standardization Pathogenic Bacteria: Listeria monocytogenes Salmonella Spoilage Organisms: Including yeasts and molds. Hygiene Indicators: General bacterial counts used for hygiene scoring. ISO - International Organization for Standardization Note on "Environment": ISO 18593 is a critical international standard for
The standard is detailed because surface sampling is error-prone. Here are three frequent mistakes the standard addresses: Here are three frequent mistakes the standard addresses:
Target Microorganisms: The standard covers the detection of bacteria, yeasts, and molds. It targets culturable microorganisms