What must cattle slaughter establishments use to analyze generic E. coli sampling results when using the excision method?

Cattle slaughter establishments must use regulatory performance criteria, commonly referred to as "m/M," to analyze generic E. coli sampling results when employing the excision method. The "m/M" criteria are part of the USDA's regulatory framework and set specific limits on the allowable levels of generic E. coli in meat products. "m" represents the maximum acceptable level of contamination for a sample, while "M" indicates the maximum acceptable level for a single sample within a lot. This system helps ensure food safety by establishing clear thresholds for acceptable levels of bacteria, guiding establishments in maintaining sanitation and quality control.

This regulatory approach is crucial for protecting public health, as exceeding these levels could indicate potential contamination that could lead to foodborne illness. It also provides a standardized method for establishments to monitor and maintain compliance with safety regulations, ensuring that meat products meet federal safety standards before they reach consumers.