This OMRI Listed low salt organic material is just what the name implies, "Just Coir", actually coconut coir pith. We take the highest quality coir available, rinse it to reduce salts and then reconstitute it from an awkward difficult to use compressed bale into a more user friendly ready to product. Black Gold® Just Coir was formally sold as Sunshine® Pro Just Coir and has become a popular product with hydroponic gardeners.