I have a new grain mill that I am hesitant to use because the rollers are anodized aluminum. As I understand it the anodized aluminum is actually aluminum oxide and supposedly non-toxic. I realize that the aluminum/alzheimer connection is in doubt (but I have seen it fluctuate as so many "certainties" do). I do not wish to take a chance playing with aluminum in my food, so can you answer the following questions:
Given that eventually the aluminum oxide would wear off, exposing me to the aluminum. Would the aluminum form a new protective oxide and if so, how fast would the aluminum re-oxidize and reform a protective barrier? (instantaneously, days, weeks?)