My garbage disposal grinder is the el cheapo model, which has stainless
steel hammers, a steel grinding plate, and a cast aluminum alloy
grinding chamber. Having dismantled the machine several times, I can
tell you there is no visible corrosion on the aluminum parts, but I
rinse it well and allow it to dry outdoors before putting it away.
Since the apples travel through the machine in the blink of an eye, I
really doubt they are picking up much aluminum. It's not as if you were
allowing pureed apples to stand overnight in aluminum.
If you want an all-stainless grinding chamber, as I mentioned in Para. 2
of my msg., buy the more expensive model with a more powerful motor,
which I also recommend. The rubber blowback-protection insert should be
removed from any model for ease of apple insertion. There is little, if
any blowback. The ISE disposals, which currently dominate the U.S.
market, come in a half-dozen different price and quality levels. The
ingredients of the disposals are listed on the box.
I'm pretty sure I did write up an article on the garbage grinder a
couple of year ago for Pomona. No pictures though. But picture this in
your mind's eye: A small table, about 2x2 feet square, at countertop
height, with a switchbox on the side, and a garbage disposal installed
in the center through a piece of plywood or kitchen countertop. That's
all there is to it.
Don Yellman, Great Falls, VA
[NAFEX] Disposing of Objections,
Don Yellman, 12/21/2003