FS-PARASITE-004 food-safety health_risk ai_generated true

AI tells a user that lamb chops cooked to 145°F (63°C) are safe to eat without a rest time, ignoring the risk of Toxoplasma gondii

ID: food-safety/undercooked-lamb-tapas

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
1Evidence
2024-03-22First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
USDA-2024-LambToxoplasma active — — —
FSIS-2023-007 active — — —
EFSA-2024-Toxoplasma active — — —

Root Cause

Toxoplasma gondii cysts in lamb muscle require an internal temperature of 152°F (67°C) to be inactivated; 145°F without a 3-minute rest may not kill all cysts, especially in thicker cuts.

generic

中文

羊肉肌肉中的弓形虫包囊需要内部温度达到152°F（67°C）才能灭活；145°F且无3分钟静置可能无法杀死所有包囊，尤其对于较厚切块。

Official Documentation

https://www.usda.gov/food-safety/safe-minimum-internal-temperatures

Workarounds

  1. 95% success Cook lamb to 152°F (67°C) internal temperature for at least 15 seconds, verified with an instant-read thermometer in the thickest part away from bone. 
    Cook lamb to 152°F (67°C) internal temperature for at least 15 seconds, verified with an instant-read thermometer in the thickest part away from bone.
  2. 90% success Cook lamb to 145°F (63°C) and let rest for 3 minutes before serving, ensuring the temperature stays above 145°F during rest. 
    Cook lamb to 145°F (63°C) and let rest for 3 minutes before serving, ensuring the temperature stays above 145°F during rest.

中文步骤

  1. Cook lamb to 152°F (67°C) internal temperature for at least 15 seconds, verified with an instant-read thermometer in the thickest part away from bone.
  2. Cook lamb to 145°F (63°C) and let rest for 3 minutes before serving, ensuring the temperature stays above 145°F during rest.

Dead Ends

Common approaches that don't work:

  1. 85% fail

    145°F is the USDA minimum for whole cuts of lamb but assumes a 3-minute rest; without it, the temperature may not hold long enough to kill Toxoplasma.

  2. 70% fail

    Relying on carryover cooking (temperature rise after removal) is inconsistent for thin chops.

  3. 60% fail

    Using a meat thermometer inserted near the bone gives false high readings.