{
  "id": "food-safety/ai-says-raw-milk-cheese-is-safe-if-aged-over-60-days",
  "signature": "AI tells a user that cheese made from raw (unpasteurized) milk is safe to eat if aged for more than 60 days",
  "signature_zh": "AI告诉用户，用生牛奶制作的奶酪如果陈化超过60天就可以安全食用",
  "regex": "(?i)(raw.{0,10}milk.{0,10}cheese|unpasteurized.{0,10}cheese).{0,40}(60|aged|safe|ok)",
  "domain": "food-safety",
  "category": "health_risk",
  "subcategory": null,
  "root_cause": "FDA regulation (21 CFR 133) requires raw-milk cheese aged at least 60 days at a temperature above 35°F to reduce pathogen risk, but studies show that certain pathogens like Listeria monocytogenes and E. coli O157:H7 can survive in aged raw-milk cheese beyond 60 days, especially if moisture and pH conditions are favorable.",
  "root_cause_type": "generic",
  "root_cause_zh": "FDA法规（21 CFR 133）要求生奶奶酪在35°F以上的温度下陈化至少60天以降低病原体风险，但研究表明，某些病原体如单核细胞增生李斯特菌和大肠杆菌O157:H7可以在陈化超过60天的生奶奶酪中存活，尤其是在水分和pH条件适宜的情况下。",
  "versions": [
    {
      "version": "FDA 21 CFR 133.150-133.196",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "FDA Raw Milk Cheese Guidance 2023",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Home refrigerators are too cold for proper aging; 60-day aging requires temperatures above 35°F (usually 50-55°F) to allow beneficial bacteria to outcompete pathogens, but home conditions often inhibit this.",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Pathogens like Listeria and E. coli do not cause visible spoilage or odors; cheese can look and smell fine while still containing harmful bacteria.",
      "fail_rate": 0.95,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Purchase only pasteurized-milk cheese from reputable sources; check the label for 'pasteurized milk' or 'made with pasteurized milk'. For raw-milk cheese, buy from licensed producers who follow FDA aging requirements and store at proper temperatures (50-55°F, 85-90% humidity).",
      "success_rate": 0.9,
      "how": "Purchase only pasteurized-milk cheese from reputable sources; check the label for 'pasteurized milk' or 'made with pasteurized milk'. For raw-milk cheese, buy from licensed producers who follow FDA aging requirements and store at proper temperatures (50-55°F, 85-90% humidity).",
      "condition": "",
      "sources": []
    },
    {
      "action": "If you must consume raw-milk cheese, choose hard cheeses like Parmesan or aged Gouda that have lower moisture content (<40%) and higher salt, which further inhibit pathogen survival. Avoid soft-ripened raw-milk cheeses like Brie or Camembert even if aged 60 days.",
      "success_rate": 0.8,
      "how": "If you must consume raw-milk cheese, choose hard cheeses like Parmesan or aged Gouda that have lower moisture content (<40%) and higher salt, which further inhibit pathogen survival. Avoid soft-ripened raw-milk cheeses like Brie or Camembert even if aged 60 days.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Purchase only pasteurized-milk cheese from reputable sources; check the label for 'pasteurized milk' or 'made with pasteurized milk'. For raw-milk cheese, buy from licensed producers who follow FDA aging requirements and store at proper temperatures (50-55°F, 85-90% humidity).",
    "If you must consume raw-milk cheese, choose hard cheeses like Parmesan or aged Gouda that have lower moisture content (<40%) and higher salt, which further inhibit pathogen survival. Avoid soft-ripened raw-milk cheeses like Brie or Camembert even if aged 60 days."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://www.fda.gov/food/buy-store-serve-safe-food/raw-milk-cheese",
  "official_doc_section": null,
  "error_code": "FDA-RAWMILKCHEESE-006",
  "verification_tier": "ai_generated",
  "confidence": 0.86,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-11-01",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}