Our lids can last for years and fit any Billie Cup size. But for practical and hygienic purposes, the lids must be bought and do not apply to the deposit system. They’re yours to keep.
Our cups are made of 100% recyclable polypropylene (PP). When deciding on the material for our cups, PP turned out to be the best fit for our product for 3 reasons:
We’re constantly researching alternative materials. Bioplastics, which have similar properties and are also suitable for a deposit system, are currently not an option because they are still not completely biodegradable and often can only be recycled in a high energy consumption process. As soon as we find a better option than PP, we will be happy to switch. We hope that there will be new and better materials in the future for our Billie Cups.