Tea companies have recently come under scrutiny for the use of polypropylene, a plastic used to heat-seal the edges of teabags. Pukka doesn’t use this kind of material. Instead, we use a simple stitch of organic cotton and a unique folding process. This means we don’t need to use polypropylene to hold our teabags together. We were the first company to ever use organic strings to hold our teabags together without the need of a metal staple or polypropylene.