Staphylococcus aureus Prevention in San Francisco Food Service

Sanitation Protocols & Cross-Contamination Prevention

The SF Health Department requires food handlers to follow strict sanitation protocols outlined in the California Food Code to eliminate Staphylococcus aureus. All food contact surfaces, cutting boards, and utensils must be washed with hot water and soap, then sanitized with an EPA-approved sanitizer—bleach solutions or quaternary ammonium compounds are standard. Separate cutting boards for raw and ready-to-eat foods are mandatory; staph often transfers from contaminated hands or raw ingredients to prepared foods. Hand-washing stations must be accessible and stocked with soap and single-use towels, with employees required to wash hands after handling raw foods, using the restroom, and touching their face or hair.

Employee Health Screening & Exclusion Policies

SF Health Department regulations require food service facilities to screen employees for symptoms associated with foodborne illness, including cuts, boils, sores, or infected wounds—all potential sources of Staphylococcus aureus. Employees with active staph infections or visible infections must be excluded from handling ready-to-eat foods until symptoms resolve and medical clearance is obtained. Training programs must educate staff on personal hygiene, proper handwashing, and the dangers of working while ill. Documentation of health screening and employee training is required during health inspections and supports compliance with both local and state regulations.

Temperature Control & Time-Temperature Management

Staphylococcus aureus produces heat-stable toxins in foods held above 40°F for extended periods; SF Health Department requires continuous monitoring of refrigeration units and cooking temperatures. Hot foods must be held at 135°F or above, cold foods at 41°F or below, with calibrated thermometers checked daily. The SF Health Department enforces the '2-hour rule'—foods left in the danger zone (40–135°F) for more than 2 hours must be discarded; this drops to 1 hour if ambient temperature exceeds 90°F. Implement time-stamping procedures for prepared foods, use cold storage units with temperature logging systems, and maintain equipment maintenance records for health department audits.

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