Coffee beans must be ground and in order to create a beverage. Grinding the roasted coffee beans is done at a roastery, in a grocery store, or in the home. They are most commonly ground at a roastery and then packaged and sold to the consumer, though "whole bean" coffee can be ground at home. Coffee beans may be ground in several ways. A uses revolving elements to shear the bean; an electric grinder smashes the beans with blunt blades moving at high speed; and a mortar and pestle crushes the beans.