Stainless steel industrial food mixing equipment in a clean processing facility

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VFFS Machine Seal Problems: Causes of Weak, Wrinkled, and Leaking Package Seals

Updated September 3, 2026 9 min read

Vertical form fill seal machine producing flexible packages on an industrial packaging line

Troubleshoot weak, wrinkled and leaking VFFS seals by checking film condition, temperature, dwell time, pressure, alignment, contamination and jaw wear.