Mortar and pestle Wikipedia
A mortar and pestle is a set of two simple tools used to prepare ingredients or substances by crushing and grinding them into a fine paste or powder in the kitchen, laboratory, and mortar (/ ˈ m ɔːr t ər /) is characteristically a bowl, typically made of hard wood, metal, ceramic, or hard stone such as pestle (/ ˈ p ɛ s əl /, also US: / ˈ p ɛ s t əl /) is a ...