Sheldon wrote:

>
> Not true. I never saw a meat grinder with a screen. If you put
> gristle in it will grind it... will even grind small bones, will grind
> poultry bones easily.

I have only seen a few small hand powered meat grinders and they all had a
screen in them There is a disk that screws into the end with holes in it
through which the ground meat is extruded.