Flour Safety in San Francisco: What You Need to Know

San Francisco Flour Handling Regulations

San Francisco enforces California Code of Regulations Title 3, Chapter 11.3 (California Food Code), which requires proper storage temperature, humidity control, and pest prevention for flour and grain products. The San Francisco Department of Public Health conducts routine inspections of food facilities to ensure flour is stored in sealed, pest-proof containers away from potential contaminants. Restaurants and retail food operations must maintain detailed records of flour sourcing, storage dates, and product rotation. Home cooks should follow similar best practices: store flour in airtight containers at room temperature (away from heat and moisture) and use within 6-8 months for all-purpose flour.

Common Flour Contamination Risks

Flour can be contaminated during harvesting, milling, or storage through contact with pathogens like Salmonella, E. coli, and Listeria. Environmental contamination—such as rodent droppings, insects, or water damage—poses serious risks in both commercial and home storage. Cross-contamination occurs when contaminated flour contacts ready-to-eat foods or when raw dough is handled improperly and then touches surfaces used for other foods. The CDC has linked several multi-state flour-related outbreaks to contamination at milling facilities. San Francisco food handlers must follow proper hygiene protocols: wash hands before handling flour, sanitize work surfaces, and never consume raw dough or batter made with uncooked flour.

Recent Recalls and Staying Informed

The FDA and FSIS regularly issue flour recalls for E. coli, Salmonella, and allergen contamination. Recent recalls have affected flour distributed in California, including products sold in San Francisco supermarkets and specialty stores. San Francisco restaurants and consumers can check the FDA's Enforcement Reports and Recalls page, as well as the California Department of Food and Agriculture (CDFA) website, for up-to-date recall information. Panko Alerts tracks 25+ government sources—including FDA, CDC, and the San Francisco Department of Public Health—to deliver real-time food safety alerts directly to your phone. Setting up notifications ensures you're notified immediately if flour products you use are recalled, helping you protect your family or business.

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