5 Products. Our new PolyBio range of environmentally friendly Starch based bags. Ideal for kitchen, fruit, vegetable and garden waste. Made from Potato starch (100% renewable and sustainable). The bags completely disintegrate into carbon dioxide, water and biomass within 10-12 weeks in standard composting condition - leaving *no* harmful residue behind. Bags are certified "OK COMPOST" by EU standard EN 13432 & International standard ASTM D6400-99.