Sometimes, when we want to cook and there’s no electricity to use a blender, and we don’t want to go outside to blend it, we use a grinding stone instead. Back when I was still living with my grandma before gaining admission to school, whenever she ask me or my two cousins, who were also living with her, to grind pepper or other ingredients and we want to use electronic blender she would ask us not to use it instead we should use grinding stone. Things has really changed in this our era because we are in technology era. Thank you for sharing this with us.