FS-LISTERIA-007 food-safety health_risk ai_generated true

AI tells a user that raw milk cheese aged for 60 days is safe for pregnant women, ignoring the risk of Listeria monocytogenes

ID: food-safety/raw-milk-cheese-aging-misconception

Also available as: JSON · Markdown · 中文
84%Fix Rate
89%Confidence
1Evidence
2024-07-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
FDA-2024-ListeriaCheese active — — —
CDC-2023-PregnancyCheese active — — —
EFSA-2024-RawMilkCheese active — — —

Root Cause

Listeria monocytogenes can survive in raw milk cheese aged 60 days, especially in soft-ripened varieties (brie, camembert) and surface-ripened cheeses, posing a risk to pregnant women, the elderly, and immunocompromised individuals.

generic

中文

单核细胞增生李斯特菌可在陈年60天的生奶奶酪中存活，尤其软熟型（布里、卡门贝尔）和表面熟成奶酪，对孕妇、老年人和免疫功能低下者构成风险。

Official Documentation

https://www.fda.gov/food/people-risk-foodborne-illness/food-safety-pregnant-women

Workarounds

  1. 98% success Pregnant women should only consume pasteurized milk cheeses; check labels for 'made with pasteurized milk' or 'pasteurized'. 
    Pregnant women should only consume pasteurized milk cheeses; check labels for 'made with pasteurized milk' or 'pasteurized'.
  2. 90% success If consuming raw milk cheese, choose hard varieties like Parmesan or aged cheddar (aged >6 months) and cook until melted (165°F internal temperature). 
    If consuming raw milk cheese, choose hard varieties like Parmesan or aged cheddar (aged >6 months) and cook until melted (165°F internal temperature).

中文步骤

  1. Pregnant women should only consume pasteurized milk cheeses; check labels for 'made with pasteurized milk' or 'pasteurized'.
  2. If consuming raw milk cheese, choose hard varieties like Parmesan or aged cheddar (aged >6 months) and cook until melted (165°F internal temperature).

Dead Ends

Common approaches that don't work:

  1. 85% fail

    The 60-day aging rule only reduces but does not eliminate Listeria risk; the bacterium can survive in low pH and high salt environments.

  2. 80% fail

    Scraping off the rind does not remove Listeria that penetrates into the cheese paste.

  3. 75% fail

    Freezing raw milk cheese does not kill Listeria; it can survive and grow upon thawing.