I just started drinking from my first batch a couple of days ago. It too was boiled in an "unoxidized" aluminum kettle. It was in the primary for 2 weeks and then bottled and conditioned for 2 weeks after. I can taste nothing metal like in it, as a matter of fact, I find it to be a good tasting beer. It is my first batch so i have nothing to compare it with, but if I were you, I wouldn't worry, Its gonna be great!