Abstract: A sealing assembly is provided for creating an airtight seal between a container and a piece of film, A bladder is inflated, which puts upward pressure on a base plate of a Lift assembly. The lift assembly includes downwardly extending arms, and as the base plate is lifted by the inflating bladder, the lift arms lift the container and film into contact or near-contact with a heater plate to seal the film to the container. Deflation of the bladder allows the lift assembly to lower thereby lowering the now-sealed container.