A storage and mixing device has an outer container and an inner container. Mounted at one end of the inner container is a first cap that rotates open and closed via a hinge. When the first cap is opened, the contents of the inner and outer containers are allowed to mix together. The other end of the inner container has an opening that is enclosed by a second cap operable to actuate a rod. When actuated, the rod pushes against the first cap thereby opening it and permitting the contents of the inner and outer containers to mix together.