Hygiene inspections and/or microbiological testing do not guarantee fo
od safety. A better approach is the application of the hazard analysis
critical control points (HACCP) concept. In this study, the HACCP sys
tem was applied in an airline catering organization; it included train
ing of supervisors and people directly involved in preparing meals. If
necessary the process or product was modified. Moreover, stricter mic
robiological standards for product acceptance were used. The microbiol
ogical effects of several catering processes on products before and af
ter implementation of HACCP were determined. The results show that imp
lementation of HACCP has improved the microbiological quality of the p
roducts.