A cooling stick for a blender includes a cylindrical member designed to fit tightly through a circular aperture extending through the blender lid. The member has a lower portion and an upper portion with a surrounding rim of a diameter larger than the circular aperture. The lower portion has a lower end sized and shaped to avoid contact with the blender blade assembly. The cylindrical member has an interior chamber, an opening extending from an exterior of the member to the chamber and means for sealing the opening. A cooling fluid is located within the interior chamber. The fluid is cooled or frozen when the cooling stick is located in a cooling environment. When the chilled cooling stick is mounted to the lid of the blender, the cooling stick will cool contents of the blender when the blender is operated. The cooling stick also cools the blender contents after operation.