PP stand-up pouches vs. PET bottles for high-quality and sensitive fillings – a report by Dr. Bernd Knierbein As by January 2026, part 3 from 5, part 2 here: 3. Completion of packaging, filling, and sealing processes 3.1 Processes for Stand-up Pouches 3.1.1 Sealing the spout The pre-made flat bags (see section 2.2.1.) can be … Continue reading POUCH vs PET BOTTLE Part 3