These takeaway food paper containers are made from sustainably sourced FSC™ certified paper. Biopak rectangular food boxes have a unique waterbased, waterproof aqueous coating. They are pending certification to AS5810 Australian Standards and NF T51-800 European Standards. These takeaway boxes are perfect for hot and greasy food, such as curries and laksa. Biopak paper rectangular lids are suitable for contents up to 60 degrees. For anything hotter, please use CPLA or PP lids.