Pyrex Cook & Freeze is a versatile range of ovenware made from heat resistant borosilicate glass. Designed to withstand extreme temperatures, the Cook & Freeze range of products can be used in temperatures varying from -40°C to +300°C, and are thermal shock resistant up to 220°C. Its compact, nestable design allows you to stack them neatly in the cupboard, fridge or freezer - perfect for saving space. These dishes also come with a BPA free plastic lid for easy storing in the fridge or freezer.