Food safety has never been higher up the agenda of public and official concern, not only because of the danger and misery incidences such as contaminations can cause, but also because of their ability to decimate market confidence in the blink of an eye. The work of the Geneva-based International Organization for Standardization (ISO) is therefore all the more important in today's food market. Keith Nuthall takes a look at the organisation's work in developing and enforcing food safety guidelines.