While extremely uncommon in high-acid foods like tomatoes, botulism remains a critical concern with any canned good. Clostridium botulinum thrives in low-oxygen, low-acid environments—but improperly processed or damaged cans can still pose a risk.
Signs of potential botulism contamination:
- Bulging or leaking can
- Foul odor (though botulism toxin is odorless—so don’t rely on smell alone)
- Spurting liquid upon opening
If you suspect botulism:
- Do not taste
- Seal the can in a plastic bag
- Dispose of it safely (or contact local health authorities)
Botulism is life-threatening—even a small amount of toxin can be fatal.
8. How Storage Affects Safety
Even properly canned tomatoes can spoil if stored incorrectly. To prevent issues:
- Keep cans in a cool, dry, dark place (ideally below 75°F / 24°C)
- Avoid areas near stoves, radiators, or sunny windows
- Never store cans in damp basements or garages where temperatures fluctuate
Heat accelerates chemical reactions and can weaken seals, inviting contamination.
9. What to Do If You See Suspicious Bubbles
ADVERTISEMENT
ADVERTISEMENT
