Summary
Film selection does not start with a material name. First define sensitivity to moisture, oxygen, light and aroma, along with shelf life and distribution conditions.
What happened?
Filling method, seal temperature, line speed and final pouch shape also affect the structure. A film that works for one product may not suit a similar product on another line.
Key details
A useful brief includes a product sample, dimensions, volume, storage conditions and packing-machine data. The final decision should follow technical testing and approval.