Tamping mill

Historic stamping plant of the oil mill in the Brandhöfer mill near Gschwend

A stamping mill ( Latin : pistrinum ) is a grain mill with a stamping mechanism in which the ground product was stamped into hollow blocks or mortars . It represents the preliminary stage of the grinding mill . In archeology , pistrinum is usually translated with both mill and bakery .

There are also paper and oil mills with pounding technology.