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

CHAPTER 7
DEFECT CATEGORIES

SECTION 7.20
DEFECT: SEAL CREEP

CLASSIFICATION:

Seal creep is considered a serious defect when the seal width is reduced to less than 3 mm (3/32-inch).

Seal creep is considered a minor defect when the seal width has 3 mm (3/32-inch) of bonded seal present.

DESCRIPTION:

Seal creep appears as a partial opening of the inside border of the seal.

COMMON SOURCES:

1) The sealing bar settings (temperature, pressure and/or dwell time) were not correct during sealing.

2) The seal area was contaminated with product, moisture, grease, or other contaminants.

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