I just got my latest toy, my 7 quart Le Creuset dutch oven. I have just recently learned about Doufeus as well. My question is this...Can I turn the lid of my dutch oven upside down so that it is concave and fill that part of the lid with ice so that I could use the oven as a doufeu? I don't even know what I would use a doufeu for, but I noticed that the lid does fit well upside down. Any comments?