Product contains compostable elements. Matter Food Scrap Bags powered by revolutionary NatureStar technology, are compostable. Matter brand Food Scrap Bags are made using sustainable, natural, and renewable resins that when disposed of properly, will compost in soil in a matter of months. Matter brand Food Scrap Bags are durable and strong, leak-resistant, and refrigerator and freezer safe. The entire lifecycle of Matter brand Food Scrap Bags minimize waste, including adding valuable nutrients back into the earth. From nature, back to nature.