For Christmas, my sister got me a FoldTuk bakeware container. The reason I share is that she actually explained to me that this new product doesn’t seem to release any harmful chemicals when put in the microwave. So, really, the material that the FoldTuk product is made from is ideal for autistic children who have sensitivity to the toxins released by typical bakeware products. The product goes from freezer to oven, and I’ve found it a huge help to have this option in the kitchen. Hope the info/ brief review helps. Happy New Year! (She ordered the foldtuk right off of their main site, but apparently Target and Amazon’s websites carry it, too)