1. ATP vs. Plate Counts Bioluminescence Checks for microbial and residual contamination Checks for microbial and residual contamination Results in less than 1 minute Results in less than 1 minute Simple to use, no technical expertise required Simple to use, no technical expertise required Allows you to check cleaning practices before production, avoiding costly contamination problems Allows you to check cleaning practices before production, avoiding costly contamination problems Provides speedy results required by HACCP Provides speedy results required by HACCP Plate Counts Checks only for the specific bacteria that can grow in the selected medium. Results in 24 to 48 hours Requires technical lab support Often requires you to throw away product after contamination results come back Do not provide the speed and simplicity of feedback required by modern HACCP demands. Both have value but provide different results.

2. Bacteria Yeast Somatic 1 100 300,000 Relative ATP concentrations

3. ATP Compared to Traditional Tests 5 organisms5 CFU 15 organisms3 CFU 20 organisms1 CFU 5 units ATP 15 units ATP 20 units ATP

4. CFU to RLU Correlation CFU RLU RLU correlates well to CFU with pure culture Residual ATP Microbial ATP Correlation does not occur because in real world environment there is residual ATP as well as microbial ATP.