Also available as a pack of 20, SKU - BG-CS-13-P. World Centric compostable bags are made from a mixture of synthetic and starch based plastics and are printed with soy based inks. These bags are great to line your kitchen compost bin, making it easy to separate food scraps, paper towels, and other compostables. These bags have an expected shelf life of 12 months and should be stored away from heat sources, direct sunlight, and moisture. A commercial composting facility may not exist in your area. They are also certified for home composting.