How to troubleshoot poor heat sealing in food packaging? Field experience with heat sealing.

When food packaging has poor seals, don't just increase the temperature right away on the production floor. Insufficient seal strength could be due to temperature, but it could also be pressure, dwell time, film batch, powder or oil contamination on the sealing surface, or even worn or misaligned sealing jaws. I once encountered air leaks on a bagged product line. The day shift said increasing…