I have a Maytag:
Heavy Duty Disposer, that is 12-years old. I know that it might no doubt be made by some other Company, but it's been a great Disposer. I really don't Grind too many items out of the ordinary, but it does Grind chunks of Celery without any problems, even if I leave them in my Disposer Sink, until I'm ready to Grind everything and push it all in at once. I just start the Water on full force first, then I turn my Disposer on and in a very short time, everything is all Grinded Up and gone. I usually run the Water a little longer, just to make sure. My Disposer also has the Auto-Reverse, so I stop it and turn it on again, to reverse the Grinding, to allow anything that might possibly have gotten stuck somewhere in the Chamber in the one direction.
Peace and Great Disposering, Steve
SactoTeddyBear...