Very good information! Thank you, Yair, I will look into that website you posted and Greg, I will search Alzheimers. Tom, do you cook with your aluminum? (or anyone else?) By looking thru Ebay at aluminum pieces, I did notice that the prices are pretty reasonable. As far as the dull finish on aluminum, that doesn't bother me at all. I think it adds to its appeal. My concern is on the inside, if there is a ring of residue that can't be cleaned or, as I asked previously, the safety of cooking with it. I remember my mother had a big aluminum roaster with lid that she would use for holidays and roasts. A lot of turkeys were cooked in that thing! Of course, I paid no attention to what the maker was and didn't care, but I suspect if was Wagnerware. That roaster is gone now (I think my brother has it, if he didn't sell it!). I think it would be nice to have a nice roaster or dutch oven. Sort of brings back memories.