To provide a container and a package configured to prevent a deformation of housed metal. According to one aspect of the present invention, there is provided the container. This container includes a cylindrical container body, a lid, and a flat plate-shaped inner plug. The cylindrical container body with a bottom has a sidewall and a bottom wall. The lid has a flat plate portion and a side portion. The flat plate portion covers an opening of the container body. The side portion covers at least a part of an outer peripheral surface of the container body. The flat plate-shaped inner plug is located inside the lid. The container body includes a thread ridge on the outer peripheral surface. The side portion of the lid has a screw groove with two or more threads on its inner peripheral surface. The lid is configured to be screwed with the container body by screwing the screw groove with the thread ridge. A plurality of lock portions are disposed on an outer periphery of the lid. The screw groove has the threads by a count identical to a count of the lock portions. The inner plug is held to an inside of the lid by each of the lock portions fitted into each inside of the screw grooves.