Apologies in advance if this is too basis a question. I've baked lasagna and various baked chicken dishes for years, loading each oven tray with an 11" X 15" glass baking dish. I am replacing one of my dishes and am considering an Emile Henry "roaster of high-fired Burgundy clay." Since I always load the oven with two baking dishes, I'd like to know if the glass dish and Emile Henry dish likely would have different baking times. Thanks.