Stone mortars and pestles have been used by the Epi-Paleolithic (Mesolithic) Kebaran culture (the Levant with Sinai) from 22000 to 18000 BC to crush grains and other plant material. The Kebaran mortars that have been found are sculpted, slightly conical bowls of porous stone.link
Were there any stone vessels (including mortars) made in Paleolithic?