I put an insulated baking sheet under it when cooking, hand wash it, never use anything but the softest utensils with it. It serves the purpose I purchased it for -- clean, convenient plan to carry dishes to family gatherings that will fit perfectly in my Coleman Party Stacker Cooler.
Would have given more stars, but I only saw the item online on my niece's registry and had it shipped directly to her. So I can't vouch for the quality of the product. I was happy that giftwrap was available.
the items store in a neat bundle. But the size are just too small for most recipes and cooking. Most of my recipes would have to be adjusted. I returned the item.
i think they had storage in mind, rather than cooking.