I don't own a Le Crueset, and all I have is a cast iron skillet. Alot of Pyrex, but nothing large enough. I do have a stainless steel 8qt. which is actually on the heavy side. My question is about the lid. It's glass with a s.steel handle. Would it be safe to use this to the temp of 450 degrees? Since the ingredients are so cheap, the worst case scenario would be to just throw it out if the final product didn't turn out.