Fresh canned tomatoes should smell bright, slightly tangy, and unmistakably tomato-like.
Do not consume if you detect:
- Sour or vinegary notes (possible lactic acid bacteria)
- Yeasty, beer-like, or alcoholic odors (yeast fermentation)
- Rotten, putrid, or “off” smells
When in doubt, throw it out. Never taste to “check.”
6. Watch for Texture and Color Changes
Spoiled tomatoes often show visible degradation:
- Slimy or mushy texture
- Dull, brownish, or grayish color
- Separation that doesn’t recombine when stirred
These changes result from enzymatic breakdown or bacterial action—and mean the product is no longer safe.
7. Botulism: A Rare but Serious Risk
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