What will happen if I put cut vegetables or roasted peanuts in a Salzburger grain mill or a mock mill?
Don't do it.
a] it won't work properly &amp;
b] you'll ruin the machine. It is supposed to take bone-dry grain in the top, grind between two flat(ish) granite plates - actual millstones - &amp; pour fresh-milled flour out of a spout. It will not only clog the mechanism &amp; not pour through, it will ruin the millstones by getting them greasy &amp;/or wet.
Don't ruin a €600 mill trying to do a job you could get a dedicated machine for €35 to do better.