reliable method to assess the safety of canned tomatoes. A fresh can of tomatoes should have a clean, slightly acidic tomato aroma. If you detect sour, yeasty, or otherwise off odors, this could indicate spoilage or fermentation.
Sour or pungent smells can be indicative of lactic acid bacteria activity, while a yeasty smell might suggest the presence of yeast fermentation. Both are signs that the product may not be safe to consume.
6. Texture And Color Changes That Point To Spoilage
Spoilage can also be detected through changes in texture