The bottles incorporate CleanFlake label technology from Avery Dennison, an Ohio-based label design and manufacturing company, which helps improve the yield of high-quality, good-grade PET in the recycling process. CleanFlake technology is built on a water-based adhesive technology that reportedly separates cleanly from PET during the caustic wash stage of the recycling process. No adhesive residue remains on the plastic, meaning it can be processed into clean, high quality, recycled PET flakes.