I have a 48qt and a 24qt aluminium pots that I bought at a local Indian grocery store...dings and all..they are thin...but never have to worry about boil overs!!! I have been brewing everything in them...I use the 24 to heat up the mash water...I fire these on a camp chef with dual 15,000BTU burners and I have absolutely no off flavors...or nervous tics....
I will say this though...keep oxyclean away from them...it will turn the aluminium black...although it wont harm them...
Unfortunately I screwed the codnitioning phase for my new 100 qt aluminum pot up by having so oxyclean accidently added to the water I was boiling to condition the pot. Now my pot has black bands on the inside as shown below. Is this too much oxidation? Should I scrub some of the black off?