Ana led the county’s microbiology unit, a pragmatic woman who trusted protocols the way sailors trust stars. She printed ISO 18593 and taped the pages to her lab bench like an altar. The standard’s precise swabbing patterns, surface-area calculations, and sampling tools suddenly felt like clues rather than rules. She assigned her team to repeat the manufacturer’s swabbing schedule exactly as ISO 18593 described: defined areas, pre-moistened swabs, consistent pressure, and neutralizing solutions when needed. They sampled drains, molds, wooden boards, stainless-steel tables, and the elusive seams of the aging cellars.

A: No. ATP is a rapid hygiene method, not a microbiological one. However, you can use ISO 18593 swabs to periodically validate your ATP system.

(specifically titled Microbiology of the food chain — Horizontal methods for surface sampling ) is an international standard that outlines the technical specifications for sampling surfaces in food production environments.