Black Aluminum.

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arturo7

arturo7

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I've been offered a 20 gal aluminum pot. The donor told me it was used once or twice for spaghetti sauce. Inside, the bottom of the pot is black and this discoloration extends up the walls about 4".

Is this an issue? Is there a good way to remove it?
 
My brew pot looks like that: a black stain up to about the 5 gallon mark. It is just oxidation. It's fine.
 
You don't want to remove the patina. It is a barrier between the reactive aluminum and product in your pot.
 

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