Container and method and apparatus for adding a product to a container

A container for containing a product, comprising a container body having an aperture and a seal assembly, the seal assembly comprising a seal and a seal support member,

• wherein the container is configured to have an intermediate configuration prior to containing the product in which the container aperture is closed by the seal assembly, the seal assembly being removable from the container to open the container aperture for filling with the product,
• wherein the container is configured to have a filled configuration containing the product in which the container aperture is sealed by the seal alone, without the seal support member present,
• wherein the seal support member and seal are attached by means of a bond in the intermediate configuration, the bond being breakable to allow separation of the seal support member and seal to adopt the filled configuration,
• wherein the seal support member is configured to be movable into an interference fit with the container body to hold the seal in place in the intermediate configuration, wherein the seal support member is provided with projections which, when the seal support member is rotated, engage with corresponding surfaces provided on the container body to provide the interference fit, and
• wherein the surfaces project inwardly from an internal periphery of the aperture.