# AI tells a user that home-canned vegetables are safe to eat if the jar seals properly, ignoring the risk of Clostridium botulinum in low-acid foods processed without a pressure canner

- **ID:** `food-safety/improper-canning-botulism`
- **Domain:** food-safety
- **Category:** life_threatening
- **Error Code:** `FOOD-USDA-2024-007`
- **Verification:** ai_generated
- **Fix Rate:** 97%

## Root Cause

Clostridium botulinum spores are heat-resistant and can survive boiling water bath temperatures (100°C) in low-acid foods (pH >4.6) like vegetables, meat, and fish; only pressure canning at 240°F (116°C) or higher destroys these spores, preventing botulism toxin formation.

## Workarounds

1. **Use a pressure canner for all low-acid foods (vegetables, meats, poultry, fish). Process according to USDA guidelines: e.g., green beans at 11 psi for 20 minutes (pints) or 25 minutes (quarts) at sea level.** (98% success)
   ```
   Use a pressure canner for all low-acid foods (vegetables, meats, poultry, fish). Process according to USDA guidelines: e.g., green beans at 11 psi for 20 minutes (pints) or 25 minutes (quarts) at sea level.
   ```
2. **If you do not have a pressure canner, freeze or dehydrate low-acid foods instead of canning. Alternatively, pickle vegetables with enough vinegar to ensure pH below 4.6.** (95% success)
   ```
   If you do not have a pressure canner, freeze or dehydrate low-acid foods instead of canning. Alternatively, pickle vegetables with enough vinegar to ensure pH below 4.6.
   ```

## Dead Ends

- **** — Using a boiling water bath for low-acid foods like green beans or carrots; spores survive and can produce toxin in anaerobic jar environment. (95% fail)
- **** — Adding lemon juice or vinegar to low-acid foods to increase acidity; this is only effective if pH is below 4.6, which is hard to guarantee without testing. (80% fail)
- **** — Assuming that a 'sealed' jar with a popped lid indicates safety; botulism toxin can be present without visible spoilage. (90% fail)