Which specific spoilage sign in traditionally canned goods necessitates immediate discarding of the contents?

Answer

Cloudiness or spurting when opening the jar

Cloudiness or spurting when opening traditionally canned goods suggests dangerous microbial activity or compromised sealing, requiring the food to be discarded to prevent illness.

Which specific spoilage sign in traditionally canned goods necessitates immediate discarding of the contents?
foodstoragepreservation