Our mountain-sourced still spring water comes in a carton that’s made from mostly plants: paper made from trees grown in FSC-certified forests is used to make the carton; the cap is made of a bio-plastic that starts out as sugarcane. Plants pull carbon out of the air as they grow, and they can be replanted. They’re renewable. And that’s what makes the carton the best option for our delicious still water. BPS & BPA free. The JUST carton is made from 88% renewable materials—aka, plants. Using plants for much of the material in the carton means a reduction in carbon emissions by up to 74% compared to an average petroleum-based plastic bottle.