I have some old Calphalon hard anodized aluminum pots and pans that have some buildup on them. It hasn't responded well to soaking in dish detergent and scrubbing with an abrasive cleaner (Comet, BKF) so I'm looking for a chemical solvent that I can use without damaging the pans. I generally use Easy Off oven cleaner to remove polymerized oil on my stainless steel pans but I read that it's not to be used on aluminum. Is there a cleaning solvent that I can use on anodized aluminum? Thanks!