FOOD-FDA-2024-003 food-safety health_risk ai_generated true

AI tells a user that undercooked red kidney beans are safe to eat if they are boiled for 10 minutes, ignoring phytohaemagglutinin toxin risk

ID: food-safety/undercooked-lentils-phytohaemagglutinin

Also available as: JSON · Markdown · 中文
92%Fix Rate
88%Confidence
1Evidence
2024-03-15First Seen

Root Cause

Red kidney beans contain phytohaemagglutinin, a lectin that causes severe food poisoning (nausea, vomiting, diarrhea) if beans are not boiled at 100°C for at least 30 minutes; slow cooking (e.g., slow cooker) at lower temperatures can actually increase toxin concentration.

generic

中文

红芸豆含有植物血凝素，这是一种外源凝集素，如果豆子未在100°C下煮沸至少30分钟，会导致严重食物中毒（恶心、呕吐、腹泻）；低温慢煮（如慢炖锅）实际上可能增加毒素浓度。

Official Documentation

https://www.fda.gov/food/buy-store-serve-safe-food/food-safety-home-kidney-beans

Workarounds

  1. 95% success Boil red kidney beans at 100°C for at least 30 minutes after soaking. Discard soaking water before boiling. Do not use a slow cooker unless beans are pre-boiled for 30 minutes. 
    Boil red kidney beans at 100°C for at least 30 minutes after soaking. Discard soaking water before boiling. Do not use a slow cooker unless beans are pre-boiled for 30 minutes.
  2. 99% success Use canned red kidney beans (pre-cooked) instead of dried beans to eliminate toxin risk entirely. 
    Use canned red kidney beans (pre-cooked) instead of dried beans to eliminate toxin risk entirely.

中文步骤

  1. 浸泡后将红芸豆在100°C下煮沸至少30分钟。煮沸前丢弃浸泡水。除非豆子已预煮30分钟，否则不要使用慢炖锅。
  2. 使用罐装红芸豆（已预煮）代替干豆，完全消除毒素风险。

Dead Ends

Common approaches that don't work:

  1. 85% fail

    Believing that boiling for 10 minutes is sufficient; toxin remains active after short boiling.

  2. 75% fail

    Using a slow cooker without pre-boiling; slow cooker temperatures often stay below 100°C, allowing toxin to increase.

  3. 60% fail

    Soaking beans overnight and then cooking briefly; soaking does not destroy the toxin.