Cooking mixer supplies silver, enabling a user to take silver and foods by supplying silver to the foods during food grinding. The cooking mixer includes a container for foodstuffs to be ground, a generating power part, a connection part for connecting the container to the power part, and a rotating body mounted in the connection part and connected to a rotary shaft of the power part, the rotating body having a plurality of blades for grinding the foodstuffs, each of the mixer blades has at least one insertion space for inserting a silver body thereto. The cooking mixer naturally supplies silver to foods to be ground, for example, when fruit juice is made or foodstuffs are chopped, thereby allowing a person to regularly take silver and detect poisonous matters contained in foods. The cooking mixer protects human health.