Karat Earth is our environmental initiative to create a compostable line of products, including paper and plastic ware, developed from the idea that living green can help people save green. Our Karat Earth products are fully compostable in commercial composting facilities, and can be converted back to monomer and poly or composted into water, carbon dioxide, and organic materials. It is recommended to keep Karat Earth products out of direct sunlight and away from hot surfaces in storage. The Karat Earth line also offers compostable utensils, eco-friendly food containers, and eco-friendly paper hot cups, which are Cedar Grove Certified.
Our compostable plastic products are made with NatureWorks® Ingeo™ PLA, a polymer that is completely degradable, posing no threat to the natural environment. The life cycle of Karat Earth PLA plastic begins with starch rich plants, such as corn, wheat, and sugar beet. The plants are first milled to separate the starch and produce unrefined dextrose. The dextrose then undergoes a fermentation process resulting in lactic acid. After condensation, two lactic acid molecules convert into one lactide. The lactide molecule is then purified through vacuum distillation and a solvent-free melt causes the ring-shaped molecule toe turn into long-chain polymers.