Fastpac by Sabert Hot and Microwavable Solutions Round Microwavable Container (1000ml) - Made by Sabert from Polypropylene, this container is microwave safe, food safe, washable and able to withstand temperature's between -18 and +100 degrees. Today more than ever, quality fast food has its requirements. In the case of take away meals to be re-heated in the microwave, Sabert has an ideal technical response. Ventilated covers avoid condensation and ensure that steam gets out. This range has leak-proof lid fit, perfect stacking ability and can be re-used. Vented lids All Fastpac lids are equipped with a venting hole. Firstly, this avoids moisture in order to keep the products perfectly visible. Secondly, lids do not burst open when reheated in the microwave. Finally, it allows the steam to release without cooling down the food.