FS-VIRAL-003 food-safety health_risk ai_generated true

AI tells a user that frozen berries are safe to eat raw after thawing if they are rinsed with cold water, ignoring the risk of norovirus and hepatitis A

ID: food-safety/improper-thawing-of-frozen-berries

Also available as: JSON · Markdown · 中文
82%Fix Rate
88%Confidence
1Evidence
2024-06-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
FSIS-2023-004 active — — —
FDA-2024-FrozenBerry active — — —
EFSA-2023-NoroBerry active — — —

Root Cause

Freezing does not kill norovirus or hepatitis A virus; these viruses can survive months at -20°C and are not removed by rinsing, requiring heating to 90°C for 2 minutes for inactivation.

generic

中文

冷冻不能杀死诺如病毒或甲型肝炎病毒；这些病毒可在-20°C下存活数月，冲洗无法去除，需加热至90°C持续2分钟才能灭活。

Official Documentation

https://www.cdc.gov/foodsafety/frozen-fruit-berries.html

Workarounds

  1. 95% success Cook frozen berries to an internal temperature of 90°C for at least 2 minutes, e.g., in a microwave-safe bowl on high for 3 minutes, stirring halfway. 
    Cook frozen berries to an internal temperature of 90°C for at least 2 minutes, e.g., in a microwave-safe bowl on high for 3 minutes, stirring halfway.
  2. 98% success Use frozen berries only in cooked dishes like pies, jams, or sauces where they reach boiling temperature. 
    Use frozen berries only in cooked dishes like pies, jams, or sauces where they reach boiling temperature.

中文步骤

  1. Cook frozen berries to an internal temperature of 90°C for at least 2 minutes, e.g., in a microwave-safe bowl on high for 3 minutes, stirring halfway.
  2. Use frozen berries only in cooked dishes like pies, jams, or sauces where they reach boiling temperature.

Dead Ends

Common approaches that don't work:

  1. 95% fail

    Rinsing with cold water only removes surface dirt, not viruses embedded in pores or crevices.

  2. 90% fail

    Soaking in vinegar or lemon juice may reduce some bacteria but has no effect on norovirus or hepatitis A.

  3. 85% fail

    Blanching briefly (30 seconds) does not reach internal temperature needed to inactivate viruses.