Abstract: An interlocking vessel includes a cylindrical container secured inside an insulated receiving component by reciprocal screw threads. The cylindrical container has a first screw thread with a plurality of turns for engagement with a cap and a second screw thread with a plurality of turns along the exterior of the body extending downward from a top portion of the body to the bottom of the cylindrical container. The insulated receiving component has a reciprocal screw thread along the interior of the body for engagement with the cylindrical container. In one embodiment, turning the cylindrical container in a downward clockwise motion engages the reciprocal screw threads, thus securing the cylindrical container in the insulated receiving component.