FS-BOTULISM-008 food-safety life_threatening ai_generated true

AI告诉用户，家庭罐装西红柿（酸性）可在沸水浴中处理10分钟，忽略了食谱中添加的洋葱或大蒜等低酸成分中的肉毒杆菌风险

AI tells a user that home-canned tomatoes (acidic) are safe to process in a boiling water bath for 10 minutes, ignoring the risk of Clostridium botulinum in low-acid ingredients like onions or garlic added to the recipe

ID: food-safety/improper-canning-of-acidic-foods

其他格式: JSON · Markdown 中文 · English
87%修复率
91%置信度
1证据数
2024-08-12首次发现

版本兼容性

版本状态引入弃用备注
USDA-2024-CanningGuide active — — —
NCHFP-2023-Tomato active — — —
FDA-2024-BotulismHomeCanning active — — —

根因分析

向西红柿中添加低酸成分（洋葱、大蒜、辣椒、香草）会将pH值提升至4.6以上，使肉毒杆菌孢子在沸水浴处理中存活；混合pH食品需要压力罐装。

English

Adding low-acid ingredients (onions, garlic, peppers, herbs) to tomatoes raises the pH above 4.6, allowing Clostridium botulinum spores to survive boiling water bath processing; pressure canning is required for mixed pH foods.

generic

官方文档

https://nchfp.uga.edu/how/can/canning-tomatoes-and-tomato-products/

解决方案

  1. Use a pressure canner at 10-15 PSI (depending on altitude) for the full time specified for the recipe (e.g., 40 minutes for pints of tomato sauce with vegetables).
  2. Follow tested recipes from USDA or National Center for Home Food Preservation (NCHFP) for mixed pH foods.

无效尝试

常见但无效的做法:

  1. 70% 失败

    Adding lemon juice (1 tbsp per quart) does not sufficiently lower pH if large amounts of low-acid ingredients are present.

  2. 90% 失败

    Boiling water bath for 10 minutes is only safe for plain tomatoes with no added low-acid ingredients; mixed recipes require pressure canning.

  3. 80% 失败

    Testing pH with litmus paper after adding ingredients is unreliable; pH can vary with ripeness and variety.