Planet+ compostable hot cup lid made from Natureworks Ingeo biopolymer - all natural plant sugars. Delivers outstanding performance with minimal global impact. Biodegradable Products Institute certified compostable. From the Stalkmarket family of Earth Friendly Products. Unlike traditional hot cup plastic lid Planet+ hot cup lid made from with Natureworks Ingeo? biopolymer - all natural plant sugars. Fully compostable within 90-120 days in commercial composting facilities. Withstands boiling water double sealed seams for exceptional strength. Support responsible use of sustainable resources and a healthy environment. Biodegradable Products Institute certified compostable.