Food > Fish and Seafood > Product Inspection > Flexible Retort Pouch Defects Manual 

CHAPTER 7
DEFECT CATEGORIES

SECTION 7.16
DEFECT: MISALIGNED SEAL

CLASSIFICATION:

Misaligned seal is a minor defect, if there is at least 3 mm (3/32-inch) of continuous bonded seal width. If there is less than 3 mm of continuous bonded seal, the defect should be classified under LESS THAN 3 MM OF CONTINUOUS BONDED SEAL WIDTH.

DESCRIPTION:

Misaligned seal is a seal that is not formed in a continuous, straight line.

COMMON SOURCES:

1) The seal was positioned improperly.

2) The sealing bars were misaligned.

3) The pouch was not placed properly within the sealing jaws.

4) The vacuum packer drew the top of the retort pouch over the shape of a rigid product (i.e., salmon side) while the pouch bottom lay flat on the sealing bar.

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