Crumbs at the Top Seal
Small fragments left behind during filling can interfere with an otherwise well-made pet treat pouch. A bag may look correctly filled, but crumbs, powder or oily residue across the sealing area can prevent the film layers from bonding consistently.
That is particularly relevant to jerky strips, brittle biscuits and freeze-dried treats, which can release particles during handling.
Custom Treat Mylar Bags need a dependable initial seal as well as a film structure appropriate for the product's freshness requirements. The sealing operation, pouch dimensions and treat characteristics must work together.
A zipper adds convenience after opening, but it does not correct a defective factory seal or compensate for unsuitable barrier materials.
Leave Space Above the Fill
The finished pouch needs sufficient space between the intended fill level and the top sealing area.
This is not simply unused packaging. It gives the filling equipment room to deposit the product and allows the heat-sealing equipment to form the closure without contacting the contents.
For small training treats, the product may settle relatively evenly. Longer jerky strips can project into the upper part of the pouch, particularly if they enter in different orientations.
Increasing the pouch height may help, but controlling the filling process can sometimes resolve the issue without changing the finished dimensions.
The correct arrangement depends on the treat shape, filling method and required seal position.
Keep the Sealing Surfaces Clean
A heat seal works by bonding compatible inner film layers under controlled conditions.
The temperature, pressure and dwell time must suit the particular laminate. The sealing surfaces also need to be sufficiently clean for a consistent bond.
Fatty jerky residue can create a different contamination problem from the dry crumbs produced by a biscuit.
When sealing problems occur, the cause should be identified rather than automatically increasing the sealing temperature.
Excessive heat can damage the laminate or distort the pouch without correcting contamination.
For products that produce substantial crumbs, the filling arrangement and the position of the sealing area deserve particular attention before the packaging specification is approved.















