Is that fermentation or spoilage.

or spoilage bubbles are different. They may:

• Continue fizzing or foaming
• Create froth on the surface
• Come with bad smells or discoloration

Fermentation happens when bacteria or yeast grow inside the can, usually because the seal was damaged.

Warning Signs to Watch For

Do not eat canned tomatoes if you notice:

• Sour, rotten, or yeasty smells
• Foam or persistent continue reading …
  

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