Classification
- A critical defect.
Identification
The package bulges due to gas formation from bacterial contamination, or excess internal residual air.
Causes
- The food was underprocessed or contaminated during aseptic processing.
- The package material was not properly sterilized or was contaminated during aseptic processing.
- The package was overfilled or a proper vacuum was not drawn.
- The package leaked after processing. 5.The post-process handling was too rough.