Maistic Food bags are certified home compostable and named 'Maistic 2.GEN'; second generation because the Maistic bags and material is updated to better strength and durability. And because the bags now contain the second-generation bioplastic PHA - an upcycled compostable bioplastic made from plant residues in food production. Used corn is organically grown and GMO-free. Maistic bags has the certification OK Compost HOME and by that tested compostable with food scraps in an environment similar to a good, well nourished home composting container. For a bag or products to obtain the compost certifications, no plastizers like BPA etc. are allowed. Maistic bags are suitable for kids lunch box, cold and freeze storage, daily dry foods etc. Usage at -20 to +40 degrees celcius. Not for microwave. Maistic come in plasticfree paper box, that is marked with a use before date as home compostable bags has a natural shelf life of 1 year from production. All Maistic bags are approved for food contact - waste bags and poop bags too. Color: Semi clear. Size 20 x 38 cm. Thickness 17 my. 20 bags/roll. Waste Management: Ask locally if Maistic bags can be disposed with biowaste or must go residual waste/non-recyclables. Don't use compostables as an excuse for littering in nature! If you wish to home compost Maistic bags, do it in closed, well nourished compost bin or container.