Plastic packaging has transformed the convenience and shelf life of consumer products, but the issue of plastic waste cannot be ignored. The Alliance to End Plastic Waste set out to address this issue, collaborating with partners across the value chain to develop innovative plastic waste management solutions. Their recent Quest for Quality report demonstrated the viability of advanced mechanical recycling as a promising approach to managing household flexible plastic waste. How is flexible plastic waste different from other types of plastic waste, and what challenges does it present in the recycling process? Flexible plastic packaging now accounts for more than half of the global plastic packaging market by volume, yet it remains one of the least-recycled material streams.