About this item Third party certified and industrial compostable. The bags are also suitable for home composting, minus the zipper part. (Please cut the top off before using in your home composting system. Our Compostable resealable bags will start to decompose within 8 to 12 weeks No harmful microplastics or plastic residue is left behind Completely earth-friendly and environmentally friendly Made from non-edible organic materials - nothing is wasted. Packaged in a recycled and recyclable box for shipment