Anchor Hocking TrueSeal glass food storage containers with lids were designed to prevent spills and leaks by utilizing the BPA-free, textured lid, which seamlessly forms to the glass container, yet are easy to put on and take off. The tempered glass is microwave, oven (up to 425 °F), freezer, and dishwasher safe - lids are top rack safe. These versatile glass containers will become a kitchen staple for all your prep, baking, storage, transporting, serving and reheating needs.