This Chef eco fresh container from Curver is a perfect food storage container for freezing, storing and reheating food. Airtight lid: The lid is designed with a soft plastic edge, which makes the freezer container 100% airtight. It is also easy to open thanks to the sturdy lip on the side of the lid.Food-safe and BPA-free: It is suitable for use in the microwave, dishwasher and freezer and is also food-safe. The microwavable food container is resistant to temperatures between -18°C and 100°C and, of course, BPA-free.Sustainable solution: Additionally, this line of freezer containers is also a sustainable solution since all products are made from 100% recycled material!